GYN OB Flashcards
Absence of menstruation by age 16
Primary Amenorrhea
What is the lab workup for primary amenorrhea?
- Quantitative Beta-HCG (pregnancy exam) 2. FSH, LH, prolactin, TSH(T3/T4), 3. May consider genetic testing
What imaging studies are order for primary amenorrhea?
Abdominal/Pelvic U/s, MRI or CT to r/o out CNS, abdominal or pelvic mass
What are the causes for primary amenorrhea?
- Gonadal agenesis or dysgenesis
- GNRH Deficiency
- Constitutional pubertal delay
- Hyperprolactinemia
- Ovarian resistance syndrome (PCOS)
- Stress
- CNS Mass
What is the max age for failure of menarche onset in the presence of 2nd sex characteristics ?
15/16
What is the age for failure of menarche onset in the absence of 2ry sex characteristics?
13
What are the etiologies of 1ry amenorrhea with uterus present and breast present ?
Outflow obstruction
Outflow obstruction consists of ?
Transverse vaginal septum, imperforate hymen
What are the etiologies of 1ry amenorrhea with uterus absent and breast present ?
Mullerian agenesis (46XX) Androgen insensitivity (46XY)
What are the etiologies of 1ry amenorrhea with uterus present and breast absent ?
Elevated:FSH/LH=Ovarian Causes
1. Premature ovarian failure 2. Gonadal dysgenesis (Turner’s 45X0)
Normal /Low: FSH/LH=
- Hypothalamus-Pituitary Failure
- Puberty delay (ex athletes, illness, anorexia)
What is Dysfunction uterine bleeding?
abnormal uterine with no underlying cause -no organic or anatomic
What is the normal menstrual cycle
24-35 days
Heavy bleeding at normal intervals
menorrhagia
bleeding between cycles
metrorrhagia
Irregular intervals with excessive bleeding
menometrorrhagia
What is oligomenorrhea ?
Infrequent cycle >35years
What is polymenorrhea
frequent cycle <21 days
How is dysfunction uterine bleeding diagnosis?
Dx of exclusion
What is the treatment of DUB?
NSAIDS, OCP/IUD, ablation/sx if persistent
What is 2nd amenorrhea ?
Cessation of menses of 6 (3) months with previous normal menses or >6 months of pets with oliogmenorrhea
what is the MC of 2nd amenorrhea
Pregnancy
What is the evaluation of 2nd amenorrhea
- Quantitative Beta-HCG (pregnancy exam) 2. FSH, LH, prolactin, TSH(T3/T4)
- Progestin Challenge
Ectopic endometrial tissue outside of the uterus
Endometriosis
What is the MC site for endometriosis ?
Ovaries MC Site
Posterior cul de sac, broad and uterosacral ligaments, recto sigmoid colon, bladder