Fitzgerald Flashcards
In counseling women about the use of a SSRI during pregnancy, the NP considers that studies to date reveal:
As more and more data become available about the effects of SSRI use during pregnancy, it has become apparent that there is a small but persistent increased risk of pulmonary hypertension in the exposed neonates. There is no link to neural tube defects, macrosomia, of gestational diabetes.
In the pregnant woman with asthma, in what part of her pregnancy are symptoms and bronchospasm likely to worsen?
29-36 weeks EGA
Bronchospasm can be triggered as a consequence of increased external pressure on the smooth muscle of the bronchial structures. The increasing size of the fetus during weeks 29–36 creates significant displacement of abdominal and thoracic structures and places external pressures on the bronchi. In the last four weeks, as the fetus “drops” into the pelvis, pressure on the bronchi is actually relieved a bit and symptoms often improve.
Medications most commonly pass through the placenta via:
Passive diffusion
The placenta is freely permeable and most medications that are administered to the mother just pass through the placenta along their concentration gradient until a steady state is achieved (i.e., passive diffusion). Facilitated transport and mechanical carrier state are mechanisms by which a medication requires another compound to allow the drug to pass through the membrane barrier. Pump actions are required when a medication or other compound is being actively pumped across a membrane against its concentration gradient.
When treating a woman with a UTI who is 22-weeks pregnant, the NP prescribes:
Nitrofurantoin (Macrobid)
In both the pregnant and non-pregnant woman, E. coli is the most common cause of uncomplicated UTI. Nitrofurantoin is a recommended first-line agent during pregnancy (pregnancy category B).
In treating a pregnant woman with acute bacterial rhinosinusitis, the NP would prescribe ______ and likely avoid prescribing_______
RX: amoxicillin, azithromycin
AVOID: Levofloxacin
Levofloxacin is pregnancy category C and would not be used when safer, effective alternatives are available. Amoxicillin and azithromycin are both indicated for acute bacterial rhinosinusitis (ABRS) and are pregnancy category B.
The recommended duration of antimicrobial therapy for treatment of a urinary tract infection in a pregnant woman is:
7 days
UTIs are common during pregnancy and the most common causative pathogen is Escherichia coli. In pregnancy, hormonal changes and dilation of the renal pelvis actually favor ascension into the upper urinary tract and, therefore, UTI is treated aggressively. Because of the dangers of maternal and fetal complications from a UTI during pregnancy, a 7-day regimen of antimicrobial therapy is recommended to ensure eradication of the bacteria.
The most likely causative organism in uncomplicated UTI during pregnancy is:
escheria coli (E. coli)
In both the pregnant and non-pregnant woman, E. coli is the most common cause of uncomplicated UTI. The organism is a common intestinal inhabitant and the close proximity of the anus and urethra puts women at risk for ascension of the organism into the lower urinary tract. In pregnancy, hormonal changes and dilation of the renal pelvis actually favor ascension into the upper urinary tract and, therefore, UTI is treated aggressively.
When a pregnant woman takes a teratogenic drug, the fetal effects are usually seen in what pattern:
Certain target organs in a predictable manner
Most teratogenic drugs target particular organ systems, and so the embryo or fetus is most vulnerable at very specific times during development. Injury is not systemic, but rather organ-system specific and predictable.
The release of which chemical mediator causes primary dysmenorrhea?
prostaglandins
Dysmenorrhea (painful menstruation) is classified as primary (from the onset of menstruation) or secondary (due to some physical cause and usually of later onset). Primary dysmenorrhea is due to the production of prostaglandins made by cells in the inner lining of the uterus. Prostaglandins cause the uterine muscles to contract and help the uterus shed the lining that has formed during the menstrual cycle. If excessive prostaglandins are produced, the woman can experience excessive pain with her menstrual cycle.
General pathogenic mechanisms of polycystic ovarian syndrome
PCOS is a result of a combination of conditions that include oligoovulation or anovulation, elevated levels of androgens, or clinical signs of hyperandrogenism and polycystic ovaries.
Polycystic ovarian syndrome (POS or PCOS) is associated with abnormalities in the metabolism of androgens and estrogen and in the control of androgen production. Patients typically have high serum concentrations of androgens, including testosterone, androstenedione, and dehydroepiandrosterone sulfate (DHEAS). POS is also associated with peripheral insulin resistance and hyperinsulinemia. In POS, oligoovulation or anovulation can occur, leading to the production of cysts in the ovaries that can contribute to infertility.
Considering the mediating factors of premenstrual syndrome (PMS), which medication can be used either continually or only during the menstrual period luteal phase of the menstrual cycle as a treatment for the condition?
Select SSRIs
Evidence implicates the serotonergic system is involved in the pathogenesis of premenstrual syndrome and its most intense form, premenstrual dysphoric disorder (PMDD). As a result, SSRIs are considered the most effective pharmacologic class for the treatment of PMS symptoms, such as irritability and depressed mood. SSRIs can be taken continuously or in the luteal phase of the menstrual cycle (the two weeks leading up to menstruation).
When a woman’s uterus is assessed as protruding into the vagina to the hymen, which stage of prolapse does this indicate?
Stage 2
Uterine prolapse is the downward displacement of the uterus into the vaginal canal taking the vaginal wall with it. 1st degree = cervix drops into lower part of the vagina; 2nd degree = the body of the uterus lies in the vagina; cervix is at the vaginal opening; and 3rd degree = the uterus and cervix protrude through the vaginal introitus.
Which term is used to identify the descent of the posterior bladder and trigone into the vaginal canal?
cystocele
Prolapses can occur in the anterior, middle, or posterior compartment of the pelvis. A cystocele comprises of a prolapse of the bladder into the vagina. An enterocele is a herniation of the pouch of Douglas (including small intestine/omentum) into the vagina. A rectocele is a prolapsed of the rectum into the vagina. A vaginocele (or colpocele) occurs when the base of the vagina drops from its normal position in women who have previously undergone a hysterectomy.
What type of cyst develops when an ovarian follicle is stimulated but no dominant follicle develops and completes the maturity process?
benign ovarian cyst
Many women will develop at least one ovarian cyst during their life with most cases being asymptomatic and resolving on their own. A benign ovarian cyst develops when a follicle is stimulated but no dominant follicle develops and completes the maturation process
What is a follicular cyst?
A follicular cyst occurs when the sac surrounding the egg fails to break open to release the egg, with the resulting fluid forming a cyst.
What is a corpus albicans cyst
A corpus albicans cyst is typically a small hyalinized fibrous scar, sometimes with fluid, that develops after the corpus luteum involutes.
What is a corpus luteum cyst
Corpus luteum cysts occur when the follicle sac fails to dissolve after releasing the egg, thus sealing the opening and allowing accumulation of fluid to form the cyst.
Which description is used when a progressive neoplastic change involves the full epithelial thickness of the cervix?
Cervical carcinoma in situ (Stage 0)
Cervical dysplasia refers to abnormal changes in the cells on the surface of the cervix. Cervical dysplasia that is seen on a Pap smear is called a squamous intraepithelial lesion (SIL). If an SIL is detected, a biopsy is often needed for confirmation. A dysplasia seen on biopsy of the cervix is called cervical intraepithelial neoplasia (CIN), and these are grouped into 3 categories (I, II, III) based on severity. A progressive neoplastic change that involves the full epithelial thickness of the cervix describes cervical carcinoma in situ (CIS), or stage 0 cervical cancer. At this stage, the cancer is noninvasive and confined to the surface of the cervix.
Which benign breast tumor affects postmenopausal women and is characterized by the principal lactiferous ducts becoming dilated and filled with cellular debris?
mammary duct ectasia
Mammary duct ectasia most often affects women in their 40s and 50s and is caused by inflammation of the ducts behind the nipple, causing the ducts to become clogged with thick, sticky cellular debris. Intraductal papillomas consist of small wart-like growths that project into lactiferous ducts near the nipple and usually affect women 30–50 years of age. Phyllodes tumors are rare breast tumors most common in women in their 30s and 40s.
When ovarian cancer is associated with a known pattern of inheritance, the majority are associated with:
BRCA 1
Data from the National Cancer Institute show that, though only about 1.4% of women in the general population will develop ovarian cancer over their lifetimes, 39% of those with a BRCA1 mutation will develop ovarian cancer by age 70 years. This compares with 11– 17% of women with a BRCA2 mutation. The USPSTF recommends screening women who have family members with breast, ovarian, tubal, or peritoneal cancer with one of several screening tools designed to identify a family history that can be associated with an increased risk for BRCA1 or BRCA2 mutations.
Risk for ovarian cancer with BRCA 1 vs. 2
BRCA 1 = 39-44%
BRCA2 = 11-17%
Which is worse, BRCA 1 or 2?
BRCA 1
Risk for breast cancer with BRCA 1 vs. 2
BRCA 1 = 55%–72%
BRCA 2 = 45%–69%
Anovulatory bleeding is abnormal uterine bleeding resulting from (2)
- estrogen excess
- progesterone deficiency
Anovulatory bleeding results from a disruption in the normal cyclic pattern of ovulatory stimulation to the endometrial lining. The bleeding in these patients is unpredictable (heavy or light, short or prolonged, frequent or random). As a result of cyclic disruption, patients have constant, non-cycling estrogen levels along with progesterone deficiency (as this is normally released during the luteal phase) that stimulates endometrial growth.