Genital Tract Bleeding & Menstrual Disorders Flashcards
Abnormal bleeding noted in the genital area is often attributed to what source?
Uterine source, but may arise from any anatomic site in the lower & upper genital tract or a nongynecologic organ
What is estrogen responsible for?
Proliferation and growth of the functional layer of the endometrium
What is progesterone responsible for?
It induces the endometrium to secrete glycogen, mucous and other substances which ready the endometrium for implantation
What happens to the endometrium when estrogen and progesterone levels drop?
The endometrium undergoes involution
What two substances cause vasoconstriction of the spiral arteries in the endometrial lining resulting in apoptosis and sloughing?
Endothelin and thromboxin
Chronic menstrual blood loss in what amount can lead to iron deficiency anemia?
> 80 ml per cycle
What is the term for pain during ovulation?
Mittelschmertz
What is the term for any bleeding that does not conform to the frequency, duration, or amount of bleeding that a woman considers normal?
Abnormal uterine bleeding (AUB)
What helps to determine the most likely cause and likelihood of serious pathology with AUB?
Life phase
What are possible differentials for AUB?
1) Pregnancy
2) Systemic disease
3) Trauma
4) Malignant neoplasm
5) Benign lesions
6) Infection
7) Medications
8) Hormonal imbalances
What is the term for an abnormally high amount of menses?
Hypermenorrhea
What is the term for an abnormally low amount of menses?
Hypomenorrhea
What is the term for periodic uterine blood loss >80 ml/cycle that occurs in the absence of structural uterine abnormalities?
Dysfunctional uterine bleeding (DUB)
What are the two types of DUB?
Anovulatory and ovulatory
What is the underlying cause of anovulatory DUB?
Hormonal disturbance (no progesterone to balance estrogen)