Contraception Flashcards
How many pregnancies are unplanned?
50%
Most effective contraceptive methods?
IUC, implant, vasectomy, female sterilization
Highest rates of complications in abortions?
Greater than 20 weeks.
Acronym BRAIDED for informed consent
Benefetis, risks, alternatives, inquiry, decision to stop, explanation of method, documentation
What does progesterone do?
Provides most benefit. Thickens cervical mucous, blocks LH surge, inhibits capacitation of sperm, decreased tubal motility, and atrophy of endometrium
What does estrogen do?
Control cycle, decrease FSH, stabilize endometrium, prevents metrorrhagia
Dose of estradiol?
20-50 mcgs/day
20 mcg in patch
15 mcg in ring
What does mestranol do?
Metabolized by liver into EE
Perfect and typical rates of failure for contraceptive pills?
Perfect=.3
typical =8
Biphasic COC?
Mircette
Triphasic COC?
Estrostrep, ortho-novum 77, orthotricyclen
Four phasic COC?
Natazia
What’s a 365 day active COC?
Lybrel. 90 mcg levonorestrel, 20 mcg of EE
Disadvantages of COC?
Gallbladder issues. No protection against STIs, daily administration, MI, Stroke, VTE, hypertension, may accelerate development of stones with women who have gallbladder problems
Absolute contraindications to open with COCs?
> 35 and smokers, estrogen sensitivites, liver problmes, migraines with aura, uncontrolled hypertension, DM
with vascular involvement, stroke or MI, propensity for blood clots, polycythemia, undiagnosed abnormal vaginal bleeding
Initial exam for initiating OCPs?
vitals, breast exam, pelvic, pap 21 y.o. or greater, GC/ chlamydia, urine screen for STIs
How often should you prescribe birth control?
1 year
Which pill should you use for COC?
Any pill is fine depending on contraindications
What pill to chose in uncomplicated diabetes?
Low EE, progestin, androgen
What pill to chose in sickle cell disease?
Not a contraindication
What are contraindications to Yaz (Drosperinone)?
Hyperkalemia, renal insufficiency, hepatic dysfunction, adrenal insufficiency
When to Start OC, regardless of menstrual cycle?
Take pill and use back up for 7 days
When don’t you need backup when starting OC?
First day of menses, or within 5 days after menses begins
About starting on Sundays?
Take pill on sunday AFTER menses begins, and use backup for 7 says
What do do if missed 1-2 pills? for EE >30
Take next pill and offer emergency contraception
What to do if missed 3 or more pills during first 2 weeks of pack? for EE >30
Condoms for 7 consecutive days of pills. Offer emergency contraceptions
What do do if missed 3 or mor pills in 3rd weeks? for EE >30
Finish active pills and start new pack
What do you do for scan’t bleeding or spotting while on COC?
Increase estrogen
What do you dog for acne, oily skin, hirsutism for COC?
Increase progestin
What are drugs for acne, oily skin, hirsutism? OCOs
Ortho Tricyclen, estrostep, yasmin, desogen, Ovcon-35
What do you do for GI (N/V) complaints while on COCs?
Take at night, decrease estrogen, or do progestin only
What do you do for constipation/bloating?
Reduce dose of progestin
What do you do for headaches?
Check BP, r/o migraine, stroke, d/c COCs, lower estrogen and progestin
What do you do for eyes?
salaine drops, send to ophthalmologist
What do you do for mastalgia?
Better bra and reduce estrogen and progesterone
Whgat do you do for melanoma, chloasma?
Caused by estrogen stimulating melanocytes, do progestin only pill
What drug can act with other potassium sparing drugs to cause hyperkalemia?
Drospireone
What will St. John’s wart do?
decrease hormone levels of COC
Warning signs for COCs? ACHES
Abdominal Pain Chest Pain Headaches Eye Problems Severe Leg Pain
Who shouldn’t take Orthoevra (Norelgestromin/EE)?
Patch- women over198 pounds
How often do you change Orthoevera?
Every week
What are those on Orthoevera at increased risk for?
Blood clots
How long do you have to go without that patch that you need to use back up EC for 7 days?
Greater than 2 days
How often do you insert nova ring?
every month
How long can nuva ring be out for?
3 hours
Risk of pregnancy with plan B?
35%
What does plan B contain?
1.5 mg levonorgestrel
Contraindications to Plan B?
Pregnancy, hypersensitivity, undiagnosed genital bleeding
When should you take plan B?
Within 72 hours. 120 hours OK but reduced effectiveness.
Ingredient in EllaOne?
Ulipristal acetate 30 mg
How soon can you take ellaOne?
5 days. Effectiveness 62-85%
What else can you use for emergency contraception?
Paragard, IUD upt o 5 days
How long do you use protection after ellaOne?
2 weeks
How long do you use progestin for Emergency contraception??
2 days
Advantages of progestin only methods for COC?
can use if breastfeeding, scant or menses, decrease dysmenorrhea, decrease cyclic mood changes, headaches, nausea, reversible, low risk of ectopic pregnancy
Disadvantages of progestin only COC
irregular menses, weight gain, breast tenderness, increased risk for ovarian cysts, possible increased risk for VTE
What to do if you missed one Progestin only COC?
take next pill, if more than 3 hours use back up for 48 hours
What to do if you missed 2 or more pills?
use back up. Take 2 pills per day for 2 days
Warning signs for progestin only COC? Abdominal pain and regular cycles than delayed peirods
abdominal pain: ectopic pregnancy, ovarian cysts
Regular cycles than delayed periods: r/o pregnancy
How often do you give Depo Provera?
every 12 weeks IM
What is the fail rate for Depo Provera?
3%
What is good about depo Provera for specific populations?
Fewer sickle cell crises
Decreased endometriosis and fibroids
What can occur with DepoProvera?
Amenorrhea
Major important side effects or warnings for DepoProvera?
Osteopenia
Cumulative index with pregnancies for implant?
.38
What medications shouldn’t you take with Implanon?
HIV drugs, St. John’s Wart
Main reason why people discontinue implanon?
bleeding irregularities
3 necessities for sterilization?
21 years of age
Mentally comptenet
Waiting 30 days after signing
Advantages of female sterilization and disadvantages?
Decrease ovarian cancer and increase ectopic pregnancies
Rate of conception if no method for birth control is used?
85%
How does estrogen contribute to clotting?
decreases antithrombin III
How does progestin inhibit androgens?
decreases LH
How long do you leave caps and sponges and spermacide in after intercourse?
6 hours
How long is egg and sperm viable for
egg- 24 hours
Sperm 72 hours