193- birth control

Question 1

effect of progesterone on pregnancy

Answer 1

thickens cervical mucus (decreased sperm penetration). Inhibits endometrial proliferation. With estrogen, inhibts LH/FSH and thus prevent estrogen surge and thus prevent LH surge and ovulation

Question 2

why do we add estrogen to OCP

Answer 2

suppress FSH, suppress LH surge further, stabilize endometrium, increase P receptors

Question 3

second generation (nortestosterone derivatives) OCPs have what main side effect

Answer 3

acne and oily skin

Question 4

drospirenone

Answer 4

analogue of spironolactone. anti-mineralocroticoid, anti-androgenic. Prescribed for acne or PMS but watch out for hyperkalemia

Question 5

estrogen-related side effects

Answer 5

breast tenderness, nausea, depression, headaches, THROMBOTIC COMPLICATIONS

Question 6

Contraindications for OCPs

Answer 6

smokers >35 y/o (increased CV risks), Hx of thromboembolism or stroke

Question 7

what are some positive side effects of OCPs

Answer 7

decreased menstrual bleeding (less anemia), decrease CA risk, decreased PID (more mucus), increased bone density (consistent estrogen levels)

Question 8

problem with progestin only pill

Answer 8

need to take EVERY DAY

Question 9

most common injectable contraception

Answer 9

depo-medroxyprogesterone acetate (DMPA)

Question 10

Mechanism of IUD

Answer 10

alters endometrium preventing implantation. Cu also stimulates inflammation which is spermicidal

Question 11

Emergency contraception: different kinds and when effective

Answer 11

Plan B w/in 72 hrs. Ulipristal w/in 5 days. Cu IUD w/in 7 days