OBGYN Flashcards
2 possible next steps in management after Pap testing shows high-grade squamous epithelial lesion?
LEEP or colposcopy
Which group of women might be good candidate for LEEP after Pap shows high-grade squamous epithelial lesion?
Age > 25 yo, Not pregnant, Completed child-bearing
What is involved in LEEP procedure?
Excision of cervical transformation zone + surrounding endocervix
Who should be screened annually for gonorrhea and chlamydia?
Sexually active females < 25 yo
Screening test of choice for detection of gonorrhea and chlamydia?
Nucleic acid amplification testing (NAAT)
Best treatment for gonorrhea and chlamydia detected by NAAT?
Azithromycin + Doxycycline
In addition to ABX treatment, what is the next step for patients who test (+) for gonorrhea and chlamydia?
Screening for other sexually-transmitted infections (HIV, syphilis)
Most likely diagnosis in post-menopausal female who presents with new-onset pelvic pressure, uterine mass, and ascites?
Uterine sarcoma
Most common location of ascites in uterine sarcoma?
Posterior cul-de-sac
Most common site of metastasis in uterine sarcoma?
Lungs
Next step of workout for post-menopausal female with suspected uterine sarcoma?
Hysterectomy … to confirm diagnosis and stage disease
2 risk factors for development of uterine sarcoma?
Tamoxifen use, Pelvic radiation
3 lab tests that should be performed at 24-28 week prenatal visit?
Hemoglobin/hematocrit (or CBC), Antibody screening if mother is Rh(D) negative, 50g 1-hour glucose tolerance test
When does gestational thrombocytopenia typically occur?
2-3 trimester
Typical platelet count of gestational thrombocytopenia?
70,000–150,000
Typical prognosis of gestational thrombocytopenia?
Resolution after delivery
2 possible mechanisms for gestational thrombocytopenia?
Hemodilution, Accelerated platelet destruction
Best management of gestational thrombocytopenia?
Serial CBC during pregnancy
When might gestational thrombocytopenia be a contraindication to neuraxial analgesia?
Severe thrombocytopenia < 70,000
Why is severe thrombocytopenia in gestational thrombocytopenia a contraindication to neuraxial analgesia?
Associated with increased risk of spinal epidural hematoma
Menopausal Hormone Therapy (MHT) is the most effective treatment available for …
Menopausal hot flashes
4 beneficial effects of Menopausal Hormone Therapy (MHT)?
Decreased risk of osteoporosis, colon CA, T2DM, all-cause mortality < 60 yo
5 detrimental effects of Menopausal Hormone Therapy (MHT)?
Increased risk of CVA, DVT, breast CA, gallbladder disease, CAD > 60 yo
3 qualities of physiologic nipple discharge?
Bilateral, Multiductal, Expressed only with manipulation
Initial workup for patients with nipple discharge?
US for women < 30 yo; Mammogram for women > 30 yo
Patients with nipple discharge and (–) US/mammogram findings should undergo …
Prolactin, thyroid studies
Endometriosis is defined by …
Presence of endometrial tissue outside uterus
4 most common locations of endometrial tissue in setting of endometriosis?
Ovaries, fallopian tubes, cul-de-sac, uterosacral ligaments
2 most common symptoms of endometriosis?
Dysmenorrhea, dyspareunia
2 DOCs for endometriosis?
NSAIDs, OCPs
Definitive treatment for endometriosis?
Hysterectomy + bilateral salpingo-oophorectomy
Most common pathogen responsible for acute cystitis?
E. coli
Best treatment of acute cystitis in pregnant females?
Empiric treatment with ABX for 3-7 days
3 options for Empiric ABX treatment for acute cystitis in pregnant females?
Nitrofurantoin, Cephalexin, Amoxicillin-Clavulanate
Best treatment of acute pyelonephritis in pregnant females?
Admission + IV ceftriaxone/cefepime
Among the risk factors for recurrent PID, what is the strongest?
Multiple sexual partners
Clinical presentation of uterine rupture?
Sudden-onset severe abdominal pain, vaginal bleeding, loss of fetal station
Sign of uterine rupture on fetal HR tracing?
Late decelerations
Late decelerations on fetal HR tracing suggest …
Fetal hypoxia
Major risk factor for uterine rupture?
HX of classical (vertical) C-section, myomectomy
Best management of uterine rupture?
Emergency laparotomy for delivery + uterine repair
Description of RhD alloimmunization?
RhD (-) mother develops Ig against RhD (+) Ag in fetus
When should Anti-D Ig be administered during pregnancy?
28 weeks
Who should receive Anti-D Ig during pregnancy?
All RhD (-) females with negative anti-D Ig screen
Who should receive Anti-D Ig post-partum?
All RhD (-) females with RhD (+) baby
Timing required for diagnosis of peripartum cardiomyopathy?
36 weeks gestation - 5 months postpartum
3 risk factors for peripartum cardiomyopathy?
30+ yo, Multiple gestation, Preeclampsia
Best tool for assessing risk of recurrence for peripartum cardiomyopathy?
LV function at diagnosis, current LV function … assessed by ECHO
3 characteristics of pathologic nipple discharge?
Spontaneous, unilateral, persistent
Most common cause of pathologic nipple discharge?
Ductal papilloma
Best management of pathologic nipple discharge in women < 30 yo?
Mammogram + US
Best management of pathologic nipple discharge in women > 30 yo?
US
All post-menopausal females should be asked about …
Vaginal dryness, dyspareunia
Medication (not hormonal therapy) that can be used to treat vasomotor symptoms for menopausal females?
SSRIs
Best treatment for vaginal atrophy resulting from menopause?
Topical low-dose estrogen
3 aspects of clinical presentation for urethral diverticulum?
Dysuria, Dyspareunia, Anterior vaginal mass (which expresses bloody/purulent fluid)
Etiology of urethral diverticulum?
Repeated infection, inflammation, urethral trauma during surgery or vaginal delivery
Initial workup for urethral diverticulum?
UA, urine culture
Diagnostic test for urethral diverticulum?
Confirmed with imaging … pelvic MRI, transvaginal US
All post-menopausal females should be asked about …
Vaginal dryness, dyspareunia
Medication (not hormonal therapy) that can be used to treat vasomotor symptoms for menopausal females?
SSRIs
Best treatment for vaginal atrophy resulting from menopause?
Topical low-dose estrogen
GI complication associated with pregnancy?
Increased incidence of gallstones
What accounts for increased incidence of gallstones during pregnancy?
Bile becomes supersaturated with cholesterol; Decreased gallbladder motility
Best management of pregnancy-associated gallstones?
Spontaneous resolution within 2 months of delivery
3 aspects of 1st trimester combined screening test for aneuploidy?
Nuchal translucency, b-HCG, PAPP-A
Does the 1st trimester combined screening test provide a definitive diagnosis of aneuploidy?
No
2 tests that provide a definitive diagnosis of aneuploidy?
Chorionic villous sampling, Amniocentesis
When can Chorionic villous sampling be performed during pregnancy?
10-13 weeks
When can Amniocentesis be performed during pregnancy?
15 weeks
BG management for female with gestational DM (treated with insulin regimen), after delivery?
Females do NOT require post-partum insulin treatment
Initial screening for T2DM in females with gestational DM?
Fasting BG … 24-72 hours after delivery
Next screening for T2DM in females with gestational DM?
Oral glucose tolerance test … 6-12 weeks after delivery
Ultimate screening for T2DM in females with gestational DM?
Diabetic screening every 3 years
Definition of pre-term labor?
Regular uterine contractions, resulting in cervical dilation at < 37 weeks
Best management of pre-term labor at < 32 weeks?
Steroids, Tocolytics, Penicillin, Magnesium sulfate
Best management of pre-term labor at 32-34 weeks?
Steroids, Tocolytics, Penicillin
Steroid of choice in management of pre-term labor at 32-34 weeks?
Betamethasone
Tocolytic of choice in management of pre-term labor at 32-34 weeks?
Nifedipine
Who should receive Penicillin in management of pre-term labor?
Patients with (+) or unknown GBS status
Best management of pre-term labor at 34-37 weeks?
Steroids, Penicillin
42 yo female presents with fever, uterine tenderness on Day 2 after c-section – diagnosis?
Postpartum endometritis
Most common pathogens responsible for Postpartum endometritis?
Polymicrobial
Etiology of Postpartum endometritis?
Ascent of vaginal floral into uterus
Most significant risk factor for Postpartum endometritis?
C-section delivery, especially when preformed after labor has begun / membranes have ruptured
4 additional risk factors for Postpartum endometritis?
GBS infection, prolonged rupture of membranes, protracted labor, operative vaginal delivery
ABX of choice for patient with Postpartum endometritis?
Clindamycin + gentamicin
First step in evaluation of infertility?
Semen analysis
17 yo female presents with purulent vaginal discharge; PE shows cervical friability – diagnosis?
Acute cervicitis
2 most common pathogens responsible for Acute cervicitis?
Gonorrhea, chlamydia
Empiric treatment for Acute cervicitis?
Ceftriaxone (gonorrhea) + Doxycycline (chlamydia)
Initial step of workup for patient with suspected Acute cervicitis?
NAAT PCR testing to confirm infection, but with empiric treatment (does not require waiting for NAAT results)
Diagnosis of cervical insufficiency can be made via …
2+ painless 2nd trimester losses; Presentation of painless cervical dilation in 2nd trimester of pregnancy
2 risk factors for development of cervical insufficiency?
Uterine abnormalities (bicornuate uterus), Ehlers-Danlos syndrome
Best management for cervical insufficiency?
Placement of cerclage at 12-14 weeks gestation
In patients who are pregnant with diamniotic/dichorionic twins, mode of delivery is determined by …
Fetal presentation (vertex vs. breech)
After healthy delivery of Twin A, cervical dilation constricts to 9mm; Fetal station of Twin B is -2; Fetal HR tracing is category 1; Contractions are occurring every 2-3 minutes – next step of management?
Expectant delivery of Twin B
ABX of choice for treatment of pelvic inflammatory disease?
Cefoxitin + doxycycline
2 most common pathogens responsible for PID?
Neisseria gonorrhea, Chlamydia
Which ABX is NOT recommended in treatment of PID?
Ciprofloxacin
First-line contraceptive method for adolescent females?
Long-Acting Reversible Contraception (LARC)
2 methods of LARC?
IUD + Contraceptive implants
How long is copper-containing IUD effective?
10 years
How long is progestin-secreting IUD effective?
5 years
How long is subdermal implant contraceptive effective?
3 years
Which form of contraceptive is recommended for patients with heavy bleeding or dysmenorrhea?
Progestin-releasing IUD
Why is IUD preferred to depot medroxyprogesterone in adolescents seeking contraceptive?
Depot medroxyprogesterone has a lower efficacy (94%) compared to IUD (99%)
Etiology of HCG hyper-stimulation syndrome?
Presents 1-2 weeks after ovulation induction with HCG infection … when stimulated by b-HCG, ovaries overproduce VEGF … VEGF causes increased vascular permeability, capillary leakage
Role of HCG injections before IVF?
b-HCG stimulates multiple follicle production, in preparation for egg retrieval
Clinical presentation of HCG hyper-stimulation syndrome?
NV, abdominal pain, ascites, pleural effusion, bilateral ovary enlargement, hypotension
Complications of HCG hyper-stimulation syndrome?
Renal failure, ARDS, DIC
Initial workup for HCG hyper-stimulation syndrome?
CBC, electrolytes, coagulation studies, b-HCG levels
Best management of HCG hyper-stimulation syndrome?
Correct electrolyte abnormalities, perform therapeutic paracentesis/thoracentesis
Definition of precocious puberty in males?
Age < 9 yo
Definition of precocious puberty in females?
Age < 8 yo
How does relationship between bone age + chronologic age change in setting of precocious puberty?
Precocious puberty = Bone Age > Chronologic Age
Change to LH and FSH levels in setting of central precocious puberty?
Increased
Etiology of central precocious puberty?
Early activation of hypothalamic-pituitary-gonadal axis
Change to LH and FSH levels in setting of peripheral precocious puberty?
Decreased
Etiology of precocious puberty?
Abnormal secretion of estrogen/testosterone from peripheral organs
Best management of central precocious puberty?
GnRH agonist … down-regulates LH and FSH release from pituitary
Pregnant patient presents with thin, malodorous vaginal discharge – diagnosis?
Bacterial vaginosis (BV)
Pathogen most commonly responsible for Bacterial vaginosis (BV)?
Gardnerella
Vaginal pH in Bacterial vaginosis (BV)?
pH > 4.5
Result of microscopy that suggests Bacterial vaginosis (BV)?
Clue cells (epithelial cells covered in bacteria)
DOC for Bacterial vaginosis (BV)?
Metronidazole, Clindamycin
Complication of Bacterial vaginosis (BV)?
PPROM, preterm labor, post-partum endometritis
Role of ABX treatment in setting of Bacterial vaginosis (BV)?
Symptom relief … ABX will NOT prevent adverse outcomes
For female with HX of epilepsy, at what point should valproate be discontinued to avoid fetal congenital abnormalities in pregnancy?
6 months prior to conception
How should valproate be adjusted for females with HX of epilepsy, now pregnant?
Do not discontinue valproate (abrupt discontinuation increases risk of seizure recurrence)
2 tests used to screen for congenital abnormalities in pregnant female currently taking valproate?
US, serum AFP
Are antiepileptic drugs contraindicated in breastfeeding?
No … although they are excreted in breastmilk
Definition of PPROM?
Preterm Premature Rupture Of Membranes (PPROM) = leakage of fluid at < 37 without contractions
4 risk factors for development of PPROM?
Heavy lifting, Anemia, HX of PPROM, 1st trimester bleeding
Complication of PPROM?
Umbilical cord prolapse
Complication of Umbilical cord prolapse?
Fetal hypoxia
3 complications of PPROM?
Chorioamnionitis, Preterm delivery, Placental abruption
Best management of PPROM?
Relieve cord compression, C-section
How long is ulipristal effective as emergency contraception?
Up to 5 days
How long is copper IUD effective as emergency contraception?
Up to 5 days
Contraindication to copper IUD as form of emergency contraception?
Acute pelvic infection (cervicitis)
Sexual assault victims should be provided with empiric post-exposure prophylaxis for …
Chlamydia, Gonorrhea, HIV, Hepatitis B (unless vaccinated), Trichomonas (unless flagellated organisms are not seen on microscopy)
HIV post-exposure prophylaxis is offered to Sexual assault victims for up to …
72 hours after assault
2 mechanisms by which thyroid hormone production increases during pregnancy?
Estrogen stimulates production of thyroid-binding globulin (TBG), increasing demand for more thyroid hormone production; hCG shares a subunit with TSH, stimulating TSH receptors … decreased TSH release = greater T3/T4 release
Change to total T4 during pregnancy?
Increased
Change to TSH during pregnancy?
Decreased
Antiphospholipid Syndrome is an autoimmune disorder characterized by …
Hypercoagulability + Obstetric complications
3 antibodies that are present in setting of Antiphospholipid Syndrome?
Anti-cardiolipin, SLE anticoagulant antibodies, anti-b2 glycoprotein
Which type of contraceptive is contraindicated in Antiphospholipid Syndrome?
Estrogen-containing contraceptives
Which type of contraceptive is indicated for patients with Antiphospholipid Syndrome who are on long-term anticoagulation?
Progestin IUD … improves heavy menstrual bleeding, decreases risk of anemia
When should Pap testing begin in female?
21 yo
Which patients should undergo Pap testing before 21 yo?
Immunocompromised
Clinical presentation of shoulder dystocia during labor?
Retraction of fetal head into maternal perineum immediately after delivery
Initial management of shoulder dystocia during labor?
McRoberts maneuver
Description of McRoberts maneuver used in setting of shoulder dystocia during labor?
Maternal hips are hyperflexed; Physician applies suprapubic pressure
Phenotype of Androgen Insensitivity Syndrome?
Female
Genotype of Androgen Insensitivity Syndrome?
Male – 46XY
Clinical presentation of Androgen Insensitivity Syndrome?
Breast development in female; Primary amenorrhea; Lack of axillary + pubic hair
Etiology of Androgen Insensitivity Syndrome?
Mutation of androgen receptor gene … causes peripheral tissues to be unresponsive to androgens, despite normal levels of androgens in circulation
Inheritance pattern of Androgen Insensitivity Syndrome?
X-linked recessive
External genitalia present in Androgen Insensitivity Syndrome?
Vagina that ends in blind pouch
Internal genitalia present in Androgen Insensitivity Syndrome?
Absent uterus + fallopian tubes; Cryptorchid testes
Initial steps of workup for Androgen Insensitivity Syndrome?
Pelvic US, karyotype, testosterone level
Diagnostic lab value for Androgen Insensitivity Syndrome?
Male-range testosterone level
What accounts for breast development in Androgen Insensitivity Syndrome?
Excessive testosterone is aromatized to estrogen
Most common AE of oral contraceptives?
Irregular, break-through bleeding
2 additional AE of oral contraceptives?
Nausea, Breast tenderness
2 AE of copper IUD?
Heavy menses, dysmenorrhea