Female Reproductive Pregnancy and Childbirth Flashcards
Danger Signals
Placental A______
Placental P______
Severe Pre______
HELLP =
PLACENTAL ABRUPTION
PLACENTA PREVIA
SEVERE PREECLAMPSIA
HELLP (HEMOLYSIS, ELEVATED LIVER ENZYMES, AND LOW PLATELETS) SYNDROME
PLACENTAL ABRUPTION (ABRUPTIO PLACENTAE)
Pregnant woman who is in the l____ few weeks of pregnancy complains of ______ onset of vaginal ______ accompanied by a _______ uterus that feels _____ (hypertonic) and is very ____ful; may have uterine contractions.
Associated with a _____ onset of _____-red-colored vaginal bleeding. Up to 20% of women do not have vaginal bleeding (blood is trapped between placenta and uterine wall; Figure 1).
If mild, blood is re______, and affected area reim____. Severe cases cause hem______ (e.g., DIC); fetus must be _____ to save mother’s life.
Higher risk in females with history of h___tension, pree_____, smoking, trauma, and co_____ use. Strongest risk factor is a _____ of placenta abruption.
Call 911. Requires ______ treatment and __-section. Placenta abruption accounts for 5% to 8% of maternal deaths.
Pregnant woman who is in the last few weeks of pregnancy complains of sudden onset of vaginal bleeding accompanied by a contracted uterus that feels hard (hypertonic) and is very painful; may have uterine contractions.
Associated with a sudden onset of dark-red-colored vaginal bleeding. Up to 20% of women do not have vaginal bleeding (blood is trapped between placenta and uterine wall; Figure 1).
If mild, blood is reabsorbed, and affected area reimplants. Severe cases cause hemorrhage (DIC); fetus must be delivered to save mother’s life.
Higher risk in females with history of hypertension, preeclampsia/eclampsia, smoking, trauma, and cocaine use. Strongest risk factor is a history of placenta abruption.
Call 911. Requires emergent treatment and C-section. Placenta abruption accounts for 5% to 8% of maternal deaths.
PLACENTA PREVIA
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A multipara woman who is in the late second to third trimester complains of new onset of pain____ vaginal bleeding that is worsened by inter_____. Blood is ____ red in color. From 10% to 20% present with both bleeding and uterine contractions. Uterus is s____ and nontender.
Any vaginal or rectal insertion or stimulation is an absolute _______ (can precipitate severe hemorrhage).
(1) to diagnose.
If cervix is not dilated, treatment is (1)*. Administer IV (1)* if there is uterine cramping. Uterus will usually reimplant itself if mild.
If cervix is dilated or if hemorrhaging, (1)*. Severe cases cause hemorrhage; fetus must be delivered to save mother’s life.
Strong association between placenta previa and amniotic fluid ______ (sudden respiratory distress, hypoxia, and/or seizures followed by DIC during labor or after delivery).
The placenta implants too low either on top of the cervix or on the cervical isthmus/neck.
A multipara woman who is in the late second to third trimester complains of new onset of painless vaginal bleeding that is worsened by intercourse. Blood is bright red in color. From 10% to 20% present with both bleeding and uterine contractions. Uterus is soft and nontender.
Any vaginal or rectal insertion or stimulation is an absolute contraindication (can precipitate severe hemorrhage).
Transabdominal ultrasound to diagnose.
If cervix is not dilated, treatment is strict bed rest. Administer IV magnesium sulfate if there is uterine cramping. Uterus will usually reimplant itself if mild.
If cervix is dilated or if hemorrhaging, fetus is delivered by C-section. Severe cases cause hemorrhage; fetus must be delivered to save mother’s life.
Strong association between placenta previa and amniotic fluid embolism (sudden respiratory distress, hypoxia, and/or seizures followed by DIC during labor or after delivery).
SEVERE PREECLAMPSIA
A primigravida woman who is in the late ____ trimester of pregnancy (>34 weeks) complains of a sudden onset of severe recurrent ____aches, v____ abnormalities (blurred vision, scotomas), and pitting _____. Edema easily seen on the f____/eyes and fingers. Sudden rapid ______ gain within 1 to 2 days (>2–4 1b/wk). New onset of right upper quadrant ______ pain.
Blood pressure (BP) more than ___/___ mmHg. Urine _____ 1+ or higher.
Sudden decrease in urine output (____uria). Visual symptoms, headache, nausea, and vomiting are worrisome signs (_____opathy).
If seizures occur, condition is reclassified as ______. Earliest time period that preeclampsia/eclampsia can occur is at ___ weeks’ gestation (and up to 4 weeks postpartum).
_______ stroke accounts for 36% of pregnancy-associated stroke. Only known “cure” is ______of fetus or baby.
(1)* is drug of choice to prevent eclampsia.
A primigravida woman who is in the late third trimester of pregnancy (>34 weeks) complains of a sudden onset of severe recurrent headaches, visual abnormalities (blurred vision, scotomas), and pitting edema. Edema easily seen on the face/eyes and fingers. Sudden rapid weight gain within 1 to 2 days (>2–4 1b/wk). New onset of right upper quadrant abdominal pain.
Blood pressure (BP) more than 140/90 mmHg. Urine protein 1+ or higher.
Sudden decrease in urine output (oliguria). Visual symptoms, headache, nausea, and vomiting are worrisome signs (encephalopathy).
If seizures occur, condition is reclassified as eclampsia. Earliest time period that preeclampsia/eclampsia can occur is at 20 weeks’ gestation (and up to 4 weeks postpartum).
Hemorrhagic stroke accounts for 36% of pregnancy-associated stroke. Only known “cure” is delivery fetus or baby.
Magnesium Sulfate* is drug of choice to prevent eclampsia.
HELLP SYNDROME
=
Classic patient is a multipara woman older than 25 years of age who is in the _____ trimester of pregnancy. Presents with the signs and symptoms of preeclampsia accompanied by ____ upper quadrant (or midepigastric) abdominal pain with n____/v_____and malaise (may be mistaken for viral illness). Symptoms can present suddenly.
Lab abnormalities are elevation of (2)*, total (1) (>1.2 mg/dL), and LDH with decreased number of (1)* (<100,000 cells/mcL) and ____, peripheral smear with schistocytes and burr cells, and hemoglobin and hematocrit.
If severe, right upper quadrant/epigastric pain may have h______ bleed or swelling, which may be signs of impending hepatic r______.
Serious but rare complication of preeclampsia/eclampsia (15% cases develop HELLP). (HEMOLYSIS, ELEVATED LIVER ENZYMES, AND LOW PLATELETS)
Classic patient is a multipara woman older than 25 years of age who is in the third trimester of pregnancy. Presents with the signs and symptoms of preeclampsia accompanied by right upper quadrant (or midepigastric) abdominal pain with nausea/vomiting and malaise (may be mistaken for viral illness). Symptoms can present suddenly.
Lab abnormalities are elevation of AST and ALT, total bilirubin (>1.2 mg/dL), and lactate dehydrogenase (LDH) with decreased number of platelets (<100,000 cells/mcL) and DIC, peripheral smear with schistocytes and burr cells, and hemoglobin and hematocrit.
If severe, right upper quadrant/epigastric pain may have hepatic bleed or swelling, which may be signs of impending hepatic rupture.
Lab Tests During Pregnancy
Urinalysis (Dipstick)
Obtain midstream urine _____ gynecologic exam (minimizes contamination from vaginal discharge). Check protein, leukocytes, nitrite, blood, glucose.
- Protein =
- If ___ weeks’ gestation or more, rule out (1) if protein ___ or higher
- If proteinuria present, order (1) urine for protein and creatinine
Obtain midstream urine before gynecologic exam (minimizes contamination from vaginal discharge). Check protein, leukocytes, nitrite, blood, glucose.
- Protein: Negative (trace, 1+ to 4+)
- If 20 weeks’ gestation or more, rule out preeclampsia if protein 1+ or higher
- If proteinuria present, order 24-hour urine for protein and creatinine
Pregnancy and LFTS
What happens to LFT levels in pregnancy?
Why happens to the level alkaline phosphatase? why?
ALT, AST, bilirubin, and gamma glutamyl transpeptidase (GGT) remain the same except for alkaline phosphatase.
Expected to increase during pregnancy due to the growth of the fetal bones. Values higher in multiple gestation pregnancies.
Pregnancy and WBCs
What happens to WBC levels in pregnancy? Why?
Levels may climb as high as?
Leukocytosis with ______ is “normal” during pregnancy (if it is not accompanied by signs of infection)
WBC is elevated throughout pregnancy, especially during the third trimester. This is because your body is going through a lot of stress just being pregnant
May climb as high as 16,000 cells/mm3 in the third trimester. (WBC in nonpregnant adults: range is 4,500–10,500 cells/mm3.)
Leukocytosis with neutrophilia is “normal” during pregnancy (if it is not accompanied by signs of infection).
Pregnancy and Hemoglobin and Hematocrit
What happens to the levels of Hgb and Hct during pregnancy?
Why does this happen?
Levels may be as low as?
What should you rule out?
Both values go down during pregnancy due to hemodilution. Called physiologic or dilutional anemia of pregnancy.
The hemoglobin value may be as low as 10.5 g/dL, and the hematocrit value may go down to about 30% (by the third trimester).
To rule out iron-deficiency anemia, check the mean corpuscular volume (MCV). It is not affected by pregnancy.
Pregnancy and Erythrocyte Sedimentation Rate
What happens to the levels of ESR?
- Normal range =*
- Rate in pregnancy =*
ESR increases during pregnancy.
- Normal Range:* 0 to 20 mm/hr
- Range in Pregnancy=* 13-70 mm/hr by the third trimester
Pregnancy and TFTs
=
why?
T3 elevated
T3 higher bc of increased levels of thyroid-binding globulin (TBG)
TSH, free T3, free T4 remains unchanged
Serum Alpha-Fetoprotein
What is it used to detect? Would levels be low or high? When to check?
Where does it produced?
A biochemical marker used to estimate a pregnant woman’s risk of having a fetus with DOWN SYNDROME. LOW levels of AFP (check btwn 15-18 weeks)
Serum alpha-fetoprotein (AFP) is manufactured by the liver of the fetus and mother. Majority of maternal AFP comes from the fetus (liver, fetal yolk sac, gastrointestinal [GI] tract).
Serum Alpha-Fetoprotein
AFP levels by race white, asian, black?
Indications to check serum alpha-fetoprotein include (2)
AFP levels are adjusted for weight and race; slightly higher levels are found in Black women and lower levels in Asian women (compared with Whites).
Indications include advanced maternal age and previous births or family history of chromosomal or birth defects (e.g., neural tube defects).
Low Alpha Fetoprotein
Most common risk factor?
If AFP is low order a triple or quadruple screen test that includes?
Mature maternal age _>_35yo “geriatric pregnancy” is the most common risk factor for Down syndrome (35-year-old or older woman has a 1:350 at term).
Low AFP → order (AFP, HCG, estriol, inhibin-A) to eval for Down Syndrome (trisomy 21)
High Alpha-Fetoprotein
Rule out (2)
- Most common reason for a high AFP is pregnancy d_____ error.
- If AFP is high (e.g., neural tube defects, omphalocele, gastroschisis), order the (1) + (1) to rule out neural tube abnormalities (higher sensitivity than AFP alone).
- To prevent neural tube defects: Ingest (1)* 400 mcg (0.4 mg) per day (found in ____ green vegetables, fortified ______). To reduce risk, advise patients to take _____ vitamins when planning to become pregnant.
Neural Tube Defects or Multiple Gestation
- Most common reason for a high AFP is pregnancy dating error.
- If AFP is high (e.g., neural tube defects, omphalocele, gastroschisis), order the triple screen or the quad screen test and sonogram to rule out neural tube abnormalities (higher sensitivity than AFP alone).
- To prevent neural tube defects: Ingest folic acid 400 mcg (0.4 mg) per day (found in leafy green vegetables, fortified cereals). To reduce risk, advise patients to take prenatal vitamins when planning to become pregnant.
Triple Marker Screen Test
=
The hormone level results are used in a formula to figure out the ____ for a _____ syndrome infant.
Diagnostic test for genetic anomalies is ______ testing.
AFP, beta HCG, and estriol serum level values
The hormone level results are used in a formula to figure out the risk for a Down syndrome infant.
Diagnostic test for genetic anomalies is chromosome testing.
Quadruple Marker Screen Test
Combination of the triple screen + (1)
What is inhibin A?
The triple or quadruple screen tests are more sensitive than the AFP alone (but have a higher rate of false positives).
Gold Standard Test for genetic disorders =
Combination of the triple screen hormones (AFP, beta-HCG, estradiol) plus inhibin-A
Inhibin A is a hormone released by the placenta
Gold Standard test for genetic disorders = fetal chromosomes/DNA.
Screening For Genetic Disorders
What genetic disorder should be screened for in these populations?
- Jewish descent (Ashkenazi Jews)
- Whites
- African Americans
- Tay–Sachs disease; this fatal neurological disease, with no known cure, is more common among Eastern Europeans of Jewish descent (Ashkenazi Jews)
- Cystic Fibrosis - whites
- Sickle Cell Anemia - African Americans
Amniocentesis And Chorionic Villus Sampling
When can these tests be done
- Chorionic villus sampling =*
- Amniocentesis =*
- Specimens contain _____ cells
- Fetal ch_____/D____ is tested for abnormalities
- Chorionic villus sampling =* 10-12 weeks
- Amniocentesis =* 15-18 weeks
- Specimens contain fetal cells
- Fetal chromosomes/DNA is tested for abnormalities
Beta Human Chorionic Gonadotropin
Manufactured by the chorion (early _____) by day __ to day __.
High-quality urine home pregnancy tests (e.g., First Response, EPT) can detect pregnancy as early as the first missed _____ (__ weeks after conception).
There are ______ levels of HCG with twins/multiple fetuses.
Manufactured by the chorion (early placenta) by day 8 to day 10.
High-quality urine home pregnancy tests (e.g., First Response, EPT) can detect pregnancy as early as the first missed period (2 weeks after conception).
There are higher levels of HCG with twins/multiple fetuses.
Beta-HCG Doubling Time
Why do we care about doubling time? (Useful only in 1st trimester)
- Normal finding:* HCG doubles every ___ hours during the first __ weeks (first trimester) in a normal pregnancy.
- Ectopic pregnancy:* The HCG has _____ values than normal. Values increase _____ and do not double as expected.
- Inevitable abortion:* Values of HCG start decreasing r______; there is ___ doubling. Cervix is _____.
Doubling time is an important indicator of the viability of a pregnancy.
- Normal finding:* HCG doubles every 48 hours during the first 12 weeks (first trimester) in a normal pregnancy.
- Ectopic pregnancy:* The HCG has lower values than normal. Values increase slowly and do not double as expected.
- Inevitable abortion:* Values of HCG start decreasing rapidly; there is no doubling. Cervix is dilated.
Vaginal Cultures
(1) tested for at 35 to 37 weeks.
Swab ____ introitus and _____ (insert up to anal sphincter) for culture and sensitivity (C&S).
If positive, administer intrapartum antibiotic _____ with (1)Rx* 5 million units IV, followed by 2.5 to 3 million units IV every __ hours until delivery.
Penicillin allergy: Use ___/___mycin instead
Group B Streptococcus (GBS) is tested for at 35 to 37 weeks
Swab vaginal introitus and rectum (insert up to anal sphincter) for culture and sensitivity (C&S).
If positive, administer intrapartum antibiotic prophylaxis with penicillin G 5 million units IV, followed by 2.5 to 3 million units IV every 4 hours until delivery.
Penicillin allergy: Use clindamycin or erythromycin instead
Sexually Transmitted Diseases
Screen for (1) surface antigen, H__, g_____, ch_____, s_____, (1) types 1 and 2.
Screen for hepatitis B surface antigen (HBsAg), HIV, gonorrhea, chlamydia, syphilis, herpesvirus types 1 and 2.
Titers
(2) to check in pregnancy
Rubella
Varicella (if no proof of infection)
Drugs And Vaccines During Pregnancy
The new Food and Drug Administration (FDA) Pregnancy and (1) will eventually replace the pregnancy letter categories (A, B, C, D, and X) with new labeling.
Since most of the drugs on the exam were released before the PLLR, the FDA letter categories will still be covered in this edition. Most of the drugs used in pregnancy are FDA category __ drugs.
Because it is unethical to experiment on pregnant women, a number of drugs used during pregnancy are found to be safe only through many years of use by pregnant women (e.g., penicillins, macrolides).
The new Food and Drug Administration (FDA) Pregnancy and Lactation Labeling Rule (PLLR) will eventually replace the pregnancy letter categories (A, B, C, D, and X) with new labeling.
Since most of the drugs on the exam were released before the PLLR, the FDA letter categories will still be covered in this edition. Most of the drugs used in pregnancy are FDA category B drugs.
Because it is unethical to experiment on pregnant women, a number of drugs used during pregnancy are found to be safe only through many years of use by pregnant women (e.g., penicillins, macrolides).
Category A Drugs
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Prenatal (1)
In_____
(1) hormone
(1) (vitamin B9), (1) (vitamin B6)
Animal and human data show no risk to pregnant women.
Prenatal vitamins (high-dose multivitamins are not used during pregnancy)
Insulin
Thyroid hormone (levothyroxine)
Folic acid (vitamin B9), pyridoxine (vitamin B6)
Category B Drugs
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- Antacids (T___, M____) are safe for pregnant women.
- (1) stool softener and is approved for pregnant women. It is not a laxative.
- ______ laxatives (e.g., ex-lax, Bisacodyl), especially in the third trimester (may induce labor).
- Analgesics ( (1) preferred to nonsteroidal anti-inflammatory drugs [NSAIDs] especially in the third trimester; see “Category D Drugs.”
Animal studies show no risk. No human data available.
- Antacids (Tums, Maalox) are safe for pregnant women.
- Docusate sodium (Colace). Colace is a stool softener and is approved for pregnant women. It is not a laxative.
- Avoid laxatives (e.g., ex-lax, Bisacodyl), especially in the third trimester (may induce labor).
- Analgesics (acetaminophen preferred to nonsteroidal anti-inflammatory drugs [NSAIDs] especially in the third trimester; see “Category D Drugs.”
Antibiotics for Pregnant Women
Penicillins?
Cephalosporins?
Only 1 macrolide is category C
Nitrofurantoin (Furadantin, Macrobid) - Do not use with (1) deficiency and contraindicated during (1)
Pencillins are safe to use
Cephalosporins are safe to use
XX Clarithromycin (Biaxin) XX is the only macrolide that is Category C (avoid in pregnancy, consult with physician before use and discuss risk and benefits)
XX Nitrofurantoin (Furadantin, Macrobid) XX - Do not use with G6PD deficiency bc will cause hemolysis (anemia, jaundice, dark urine), Contraindicated during labor and delivery (or near tearm dt increased risk of hemolytic anemia)
Antihypertensives for Pregnant Women
(3)
Used for women with __existing hypertension or for moderate-to-severe (1). Use of antihypertensive drugs to control mild hypertension does not alter the course of the disease or diminish perinatal morbidity or mortality of preeclampsia. Refer to obstetrician.
Methyldopa (Aldomet)
Calcium channel blockers (Procardia)
Labetalol (Normodyne)
Used for women with preexisting hypertension or for moderate-to-severe preeclampsia or eclampsia. Use of antihypertensive drugs to control mild hypertension does not alter the course of the disease or diminish perinatal morbidity or mortality of preeclampsia. Refer to obstetrician.
Category C Drugs
(3)
Sulfa drugs - Trimethoprim–sulfamethoxazole (e.g., Bactrim DS, Septra)
Clarithromycin (Biaxin)
Pseudoephedrine (Sudafed)
Category C Drugs
- Sulfa Drugs (Bactrim)= can cause?
- Clarithromycin (Biaxin) = only category C macrolide abx
- Pseudoephedrine (Sudafed) = increases risk of?
- Sulfa Drugs (Bactrim)= can cause hemolytic anemia which results in hyperbilirubinemia. Sulfa drugs displace bilirubin from albumin → high levels of unconjugated bilirubin can cross blood brain barrier and cause brain damage (kernicterus)
- Clarithromycin (Biaxin) = only category C macrolide abx
- Pseudoephedrine (Sudafed) = increases risk of gastroschisis (intestines protrude through abdominal wall defect) - ideally should not be used in pregnancy and breastfeeding (may interfere with lactation, crosses breast milk)
Category D Drugs
Evidence of ____ risk. Benefits should outweigh the risk of using the drug.
A___/A____
Fl______
T________
N_____
S____ Drugs
Evidence of fetal risk. Benefits should outweigh the risk of using the drug.
ACEI/ARBS
Fluoroquinolones
Tetracyclines
NSAIDs
Sulfa Drugs
Category D Drugs
What these drugs can cause
ACE/ARBS =
Fluoroquinolones =
Tetracyclines =
NSAIDS =
Sulfa Drugs =
ACE/ARBS = Causes fetal renal abnormalities, renal failure, and hypotension
Fluoroquinolones = Affect fetal cartilage development; a rare side effect is Achilles tendon rupture in athlete; contraindicated in pregnant or lactating women and children younger than 18 years
Tetracyclines = Stain growing tooth enamel
NSAIDS = Block prostaglandins and may cause premature labor; avoid using especially in the last 2 weeks of pregnancy
Sulfa Drugs = Risk of hyperbilirubinemia (neonatal jaundice or kernicterus); sulfa drugs displace bilirubin from albumin; high levels of unconjugated bilirubin will cross the blood–brain barrier and cause brain damage (mental retardation, seizures, deafness, etc.)
Category X Drugs
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A_______ (isotretinoin, a vitamin A derivative)
M_______ (antimetabolite) and anticancer drugs
F______ (Proscar (antiandrogen))
_____prostol (prostaglandin analog)
Evista and Tamox_____ (selective estrogen receptor modulator [SERM])
All ______ drugs (estrogen, testosterone, finasteride (proscar), mifepristine (RU-86)
Depo _____ (blocks hormone synthesis and is used for infertility, hormone-dependent cancers, and endometriosis)
Proven fetal risks outweigh the benefits.
Accutane (isotretinoin, a vitamin A derivative)
Methotrexate (antimetabolite) and anticancer drugs
Proscar (antiandrogen)
Misoprostol (prostaglandin analog)
Evista and tamoxifen (selective estrogen receptor modulator [SERM])
All Hormonal drugs (estrogen, testosterone, finasteride (proscar), mifepristine (RU-86)
Depo Lupron (blocks hormone synthesis and is used for infertility, hormone-dependent cancers, and endometriosis)
Category X Drugs
Accutane (isotretinoin, a vitamin A derivative)
- Used for severe c____ and nodular acne recalcitrant to treatment; it is highly teratogenic.
- Also avoid vitamin ___ derivative topicals such as ____nol/retinoid, tretinoin (Retin-A), adapalene
Methotrexate (antimetabolite) and anticancer drugs
- Used for some types of auto_____ diseases (psoriasis, rheumatoid arthritis) and certain c______
Proscar (antiandrogen)
- Used for benign (1) and (1) cancer
Misoprostol (prostaglandin analog)
- Used as one of the drugs in medical ____ (a component of the “abortion pill”)
Accutane (isotretinoin, a vitamin A derivative)
- Used for severe cystic and nodular acne recalcitrant to treatment; it is highly teratogenic.
- Also avoid vitamin A derivative topicals such as retinol/retinoid, tretinoin (Retin-A), adapalene
Methotrexate (antimetabolite) and anticancer drugs
- Used for some types of autoimmune diseases (psoriasis, rheumatoid arthritis) and certain cancers
Proscar (antiandrogen)
- Used for BPH and prostate cancer
Misoprostol (prostaglandin analog)
- Used as one of the drugs in medical abortion (a component of the “abortion pill”)
Category X Drugs
Evista and tamoxifen (selective estrogen receptor modulator [SERM])
- Use reduces risk of reoccurrence of _____ receptor–positive _____ cancer
All hormonal drugs (natural or synthetic) are category X in pregnancy—all forms of e_____, tes______, fin______ (Proscar), mifepristone (RU-86).
Any drug that blocks hormone synthesis or binding (D____ Lupron)
Depo Lupron is used for in______, hormone-dependent cancers, and end______.
Evista and tamoxifen (selective estrogen receptor modulator [SERM])
- Use reduces risk of reoccurrence of estrogen receptor–positive breast cancer
All hormonal drugs (natural or synthetic) are category X in pregnancy—all forms of estrogens, testosterone, finasteride (Proscar), mifepristone (RU-86).
Any drug that blocks hormone synthesis or binding (Depo Lupron)
Depo Lupron is used for infertility, hormone-dependent cancers, and endometriosis.
Depo Lupron lowers the amount of testosterone in a person’s body, which helps slow the growth of cancer cells**.
Drugs to Avoid (Third Trimester of Pregnancy)
(1)* (blocks prostaglandin)
A____ and salicylates (affect platelets). Bismuth subsalicylate (____-Bismol) contains salicylates.
_____-containing drugs (2)) near term: Higher risk of hyperb_____emia, jaundice, k____icterus, _____hydramnios, premature closure ductus arteriosus.
NSAIDs (blocks prostaglandin)
Aspirin and salicylates (affect platelets). Bismuth subsalicylate (Pepto-Bismol) contains salicylates.
Sulfa-containing drugs (trimethoprim–sulfamethoxazole, nitrofurantoin) near term: Higher risk of hyperbilirubinemia, jaundice, kernicterus, oligohydramnios, premature closure ductus arteriosus.
Live Vaccines
Which Vaccines are contraindicated in pregnancy?
(4)
Notes: If a reproductive aged woman gets a live virus vaccine, what should you advise them to do?
MMR, Oral Polio, Varicella, and Flumist
Note: If a reproductive aged woman gets a live virus vaccine - advise them not to get pregnant (use reliable birth control) the next 4 weeks for MMR or 3 months (varicella and shingles)
Vaccines and Pregnancy
(2) Vaccines are recommended for pregnant women
Inactivated flu vaccine and Tdap vaccines are recommended for pregnant women.
Influenza vaccine is an inactivated virus and is safe to use in pregnant women.
- Recommend for pregnant women, especially if they are pregnant during the fall and winter seasons. Only use the injectable inactivated flu vaccine.
- Live attenuated influenza virus (LAIV) vaccine and flu vaccine via nasal spray (FluMist) are contraindicated.
Teratogens
Agents that can cause structural abnormalities during pregnancy:
- (1) (Paxil):* Taking drug during the first trimester increases risk of birth defects, particularly ____ defects (others are anencephaly, abdominal wall defects). FDA category D drug.
- (1) (Prozac):* ____ wall defects and cranio______ (premature closure of skull sutures).
- Other SSRIs (citalopram, escitalopram, sertraline):* ____-trimester exposure may be associated with a low risk of teratogenicity
Chronic ______ during pregnancy (poorly controlled diabetes or gestational diabetes mellitus [GDM]) is a teratogenic state. It increases the risk of neural tube defects and craniofacial defects.
- Paroxetine (Paxil):* Taking drug during the first trimester increases risk of birth defects, particularly heart defects (others are anencephaly, abdominal wall defects). FDA category D drug.
- Fluoxetine (Prozac):* Heart wall defects and craniosynostosis (premature closure of skull sutures).
- Other SSRIs (citalopram, escitalopram, sertraline):* First-trimester exposure may be associated with a low risk of teratogenicity
Chronic hyperglycemia during pregnancy (poorly controlled diabetes or gestational diabetes mellitus [GDM]) is a teratogenic state. It increases the risk of neural tube defects and craniofacial defects.
Teratogens
- Alcohol:* (1) syndrome
- Aminoglycosides:* ____ness
- C_______:* Intrauterine growth retardation (IUGR), prematurity
- C______:* Cerebro_____ accidents (CVAs), mental retardation, abruptio placentae
- _______ (Accutane):* Central nervous system (CNS)/craniofacial/ear/cardiovascular defects
- Lithium:* Cardiac defects (_____ anomalies are malformations of tricuspid valve and right atrium that can cause heart failure, sudden death, transient ischemic attack (TIA), stroke; presentation is middle teenager years).
- Alcohol:* Fetal alcohol syndrome
- Aminoglycosides:* Deafness
- Cigarettes:* Intrauterine growth retardation (IUGR), prematurity
- Cocaine:* Cerebrovascular accidents (CVAs), mental retardation, abruptio placentae
- Isotretinoin (Accutane):* Central nervous system (CNS)/craniofacial/ear/cardiovascular defects
- Lithium:* Cardiac defects (Ebstein’s anomalies are malformations of tricuspid valve and right atrium that can cause heart failure, sudden death, transient ischemic attack (TIA), stroke; presentation is middle teenager years).
Health Education
Take ______ vitamins with 400 mcg of (1) daily (start 2–3 months before conception).
Always wear seat____ (lap-style seatbelt _____ uterine fundus).
Avoid ____ cheeses (blue cheese, brie), uncooked m____, raw m____ (Listeria bacteria).
Sex is ___ except during vaginal bl_____, incom____ cervix, placenta previa, or preterm labor.
Cat ____or r___/undercooked ____ can cause toxo______ (congenital infection).
Take prenatal vitamins with 400 mcg of folic acid daily (start 2–3 months before conception).
Always wear seatbelt (lap-style seatbelt below uterine fundus).
Avoid soft cheeses (blue cheese, brie), uncooked meats, raw milk (Listeria bacteria).
Sex is safe except during vaginal bleeding, incompetent cervix, placenta previa, or preterm labor.
Cat litter or raw/undercooked meat can cause toxoplasmosis (congenital infection).
Health Education
Do not eat raw ____fish or raw oy____ (Vibrio vulnificus infection).
Be careful with cold ____, uncooked hot ____, and “d____” meat (L______ bacteria). Pregnant women are 20 times more likely to become infected and die from Listeria monocytogenes.
Sm____ (vasoconstriction causes IUGR) and al____ (fetal alcohol syndrome) are contraindicated.
Regular coffee (8 oz/d) is ____. Do not consume an excessive amount of caffeine (premature labor).
Do not use hot ___ or sa____ or expose oneself to excessive heat.
Do not eat raw shellfish or raw oysters (Vibrio vulnificus infection).
Be careful with cold cuts, uncooked hot dogs, and “deli” meat (Listeria bacteria). Pregnant women are 20 times more likely to become infected and die from Listeria monocytogenes.
Smoking (vasoconstriction causes IUGR) and alcohol (fetal alcohol syndrome) are contraindicated.
Regular coffee (8 oz/d) is okay. Do not consume an excessive amount of caffeine (premature labor).
Do not use hot tubs or saunas or expose oneself to excessive heat.
Zika Virus
Zika infection during pregnancy can cause severe birth defects (e.g., micro_____) and n____developmental abnormalities.
The only way to completely prevent Zika infection during pregnancy is to?
If travel is necessary, the Centers for Disease Control and Prevention (CDC) recommends the following special pre______ for pregnant women and women (and their partners) who are trying to become pregnant
Zika infection during pregnancy can cause severe birth defects (e.g., microcephaly) and neurodevelopmental abnormalities.
The only way to completely prevent Zika infection during pregnancy is to not travel to areas with Zika outbreak/risk and to use condoms or avoid sex with someone who has recently traveled to a risk area.
If travel is necessary, the Centers for Disease Control and Prevention (CDC) recommends the following special precautions for pregnant women and women (and their partners) who are trying to become pregnant
Zika Virus Pregnant Women
Use Environmental Protection Agency (EPA)-registered insect rep____ and cover skin.
Stay in places with air _____, sc____, and mosquito n___.
Use c_____ or ab____ from sex during pregnancy.
Be alert for symptoms after travel.
Use Environmental Protection Agency (EPA)-registered insect repellents and cover skin.
Stay in places with air conditioning, screens, and mosquito nets.
Use condoms or abstain from sex during pregnancy.
Be alert for symptoms after travel.
Zika Virus Women and Partners Trying to Become Pregnant
Use condoms or abstain from sex according to the following time frames:
- Both partners or only the male partner traveled to an outbreak/risk area: ___ months after return or from the start of symptoms or date of diagnosis
- Only the female partner traveled to an outbreak/risk area: __ months after return or from the start of symptoms or date of diagnosis
Use condoms or abstain from sex according to the following time frames:
- Both partners or only the male partner traveled to an outbreak/risk area: 3 months after return or from the start of symptoms or date of diagnosis
- Only the female partner traveled to an outbreak/risk area: 2 months after return or from the start of symptoms or date of diagnosis
Weight Gain
- Best Weight Gain Total =* ___ -____ lb
- Underweight patients (BMI <18.5):* Gain a total of __ to __lb
- Obese patients (BMI >30):* Gain a total of up to __ to __ lb
- Best weight gain Total:* 25 - 35 lb
- Underweight patients (BMI <18.5):* Gain a total of 28 to 40 lb
- kg).Obese patients (BMI >30):* Gain a total of up to 11 to 20 lb
Weight Gain
What trimester is the most weight gained per week? how many lb per week?
- After delivery:* Loss of up to __ to __ lb in first few weeks is appropriate.
- Twins:* Increased weight gain __–__ lb is appropriate, but weight gain should not be double that for a single fetus.
Most weight gain is gained in the third trimester (about 1-2 lb per week)
- After delivery:* Loss of up to 15 to 20 lb in first few weeks is appropriate.
- Twins:* Increased weight gain 37–54 lb is appropriate, but weight gain should not be double that for a single fetus.
Geriatric Pregnancy
Women who are pregnant at age 35 years have a “geriatric pregnancy.” At higher risk of:
Ch________ abnormalities (e.g., Down syndrome), birth defects
Pre______
___-birth-weight infants
Mis______, ___mature birth
Complications during delivery (e.g., stillbirth); more likely to have C______ delivery
Women who are pregnant at age 35 years have a “geriatric pregnancy.” At higher risk of:
Chromosomal abnormalities (e.g., Down syndrome), birth defects
Preeclampsia
Low-birth-weight infants
Miscarriage, premature birth
Complications during delivery (e.g., stillbirth); more likely to have Cesarean delivery
Positive Signs of Pregnancy
______ of fetus by health provider
U______ and visualization of fetus
Fetal ____ tones (FHTs) auscultated by health provider
- 10 to 12 weeks by D____/Doptone
- 20 weeks by fetoscope/st______
Palpation of fetus by health provider
Ultrasound and visualization of fetus
Fetal heart tones (FHTs) auscultated by health provider
- 10 to 12 weeks by Doppler/Doptone
- 20 weeks by fetoscope/stethoscope
Probable Signs of Pregnancy
- (1) sign (4 weeks):* Cervical softening
- (1) sign (6–8 weeks):* Blue coloration of the cervix and vagina
- (1) sign (6–8 weeks):* Softening uterine isthmus
En_____ uterus
(1) (seen in midpregnancy): When the fetus is pushed, it can be felt to bounce back by tapping the palpating fingers inside the vagina
Urine or blood pregnancy tests (beta ____)
- Goodell’s sign (4 weeks):* Cervical softening
- Chadwick’s sign (6–8 weeks):* Blue coloration of the cervix and vagina
- Hegar’s sign (6–8 weeks):* Softening uterine isthmus
Enlarged uterus
Ballottement (seen in midpregnancy): When the fetus is pushed, it can be felt to bounce back by tapping the palpating fingers inside the vagina
Urine or blood pregnancy tests (beta HCG)
Presumptive Signs of Pregnancy
The following are the “softest” and least objective signs (from mother). Can be caused by many other conditions besides pregnancy.
- ____orrhea
- N___/v____ (most common in first trimester in the morning, usually disappears by the second trimester)
- Br____ changes (swollen and tender)
- Fat____
- Urinary fr______
- Slight ___crease in body temperature
- “Q_______”: Mother feels the baby’s movements for the first time; starts at 16 weeks
The following are the “softest” and least objective signs (from mother). Can be caused by many other conditions besides pregnancy.
- Amenorrhea
- Nausea/vomiting (most common in first trimester in the morning, usually disappears by the second trimester)
- Breast changes (swollen and tender)
- Fatigue
- Urinary frequency
- Slight increase in body temperature
- “Quickening”: Mother feels the baby’s movements for the first time; starts at 16 weeks
Signs of Pregnancy
Exam Tips
The signs with surnames (Goodell, Chadwick, Hegar) are all _____ signs.
Palpation of fetal movements by the mother is not considered a positive sign of pregnancy (“quickening”). It is classified as a “______ sign.”
Urine/serum pregnancy tests are considered _____ signs (do not confuse them as “positive signs”). Beta HCG also presents in molar pregnancy and ovarian cancer.
The signs with surnames (Goodell, Chadwick, Hegar) are all probable signs.
Palpation of fetal movements by the mother is not considered a positive sign of pregnancy (“quickening”). It is classified as a “presumptive sign.”
Urine/serum pregnancy tests are considered probable signs (do not confuse them as “positive signs”). Beta HCG also presents in molar pregnancy and ovarian cancer.
Exam Tips
Exam questions asking for one of the signs will mix them up (e.g., mix a positive sign with a probable sign). Ensure that the answer option contains the two signs from the ____ category.
Memorize the (3) positive signs of pregnancy. This is the shortest list to memorize. By the process of elimination, you can rule out (or in) the correct answer choice.
Exam questions asking for one of the signs will mix them up (e.g., mix a positive sign with a probable sign). Ensure that the answer option contains the two signs from the same category.
Memorize the three positive signs of pregnancy. This is the shortest list to memorize. By the process of elimination, you can rule out (or in) the correct answer choice.
- Palpation of fetus
- US/Visualization of Fetus
- Auscultation of Fetal Heart Tones (10-12 wks by Doppler, 20 weeks by stethoscope)
Clinical Methods for Dating Pregnancy
Fundal Heights
(1) weeks = Uterine fundus first rises above symphysis pubis
(1) weeks = Uterine fundus between symphysis pubis and umbilicus
(1) weeks = Uterine fundus at level of umbilicus
FHTs are heard by Doppler at how many weeks?
FHTs are heard by fetoscope or Stethoscope by how many weeks?
12 weeks = Uterine fundus first rises above symphysis pubis
16 weeks = Uterine fundus between symphysis pubis and umbilicus
20 weeks = Uterine fundus at level of umbilicus
FHTs are heard by Doppler by 10 to 12 weeks.
FHTs are heard with fetoscope or stethoscope by 20 weeks.
Fundal Height 20-35 Weeks Gestation
Measure the distance between upper edge of (1) and the top of the uterine (1) using a paper tape measure.
Past 20 weeks the fundal height equals what in cm?
For example, a 32-week-gestation fetus should have a fundal height of between ___ and __ cm.
Measure the distance between upper edge of pubic symphysis and the top of the uterine fundus using a paper tape measure.
Fundal height in centimeters equals the number of weeks of gestation (±2 cm).
For example, a 32-week-gestation fetus should have a fundal height of between 30 and 34 cm.