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CM Contraception
Contraception
| Question | Answer |
|---|---|
| Pearl index measures | The number of unintended pregnancies per hundred women per year |
| Method with the greatest unplanned pregnancies | Calendar/Rhythm method |
| Method with the least unplanned pregnancies | Injectables |
| Average fertile period | 6 days per cycle (time from ovulation) |
| How long can sperm survive in the female? | 5 days |
| From ovulation to implantation is about __ days if the egg is fertilized | 7 |
| Limitations of Spermicide | Does NOT protect against HIV, chlamydia, or gonorrhea. Also often causes irritation and allergic reactions in women and me |
| CI of female condom | never use male and female condoms at the same time |
| CI of contraceptive Sponge Today | Cannot use if sulfa allergy. |
| nonoxynol-9 is | spermicide |
| Physiologic effects of estrogen in COCPs | usually inhibit ovulation by suppressing FSH surge, alters endometrium, luteolysis (degeneration of corpus luteum) |
| Physiologic effects of progestin in COCPs | usually inhibits ovulation by suppressing LH surge, thickens cervical mucus, sperm become less effective, hampers implantation |
| Androgenic effects (from progestin) | testosterone-like effect, weight gain, hirsutism, acne |
| Absolute CIs to Estrogen containing OCPs | CV disease, smoker over 35 (equivalent to CV disease), coagulation disorders (inc. DVT, PE), dyslipidemia (Triglycerides>350mg/dl), Diabetes (with CAD or PVD), Neurologic Dz, pregnancy, undiagnosed vaginal bleeding, liver dz or adenoma |
| Relative CIs to Estrogen containing OCPs | HTN, Diabetes without CAD or PVD, Gallbladder dz, Hx of cholestatic jaundice in pregnancy, epilepsy, leg injury or cast, immobilization (DVT!), elective surgery, SS, Migraines, Obesity, Family hx of CVD |
| Negative effects of OCPs | No STD protection, daily dosing, benign liver tumors, worsening gallbladder problems, blood clots, strokes (more in smokers), expensive |
| Common AEs of OCPs | N/V, weight changes, change in menses (BTB, amenorrhea), breast changes, migraines, edema, rash, melasma, depression (progesterone), decreased libido |
| Dosage notes for Minipills | take every dat and the same time "obsessive regularity" |
| Who are minipills a good option for? | breastfeeding women, smokers>35 and for those who can't tolerate estrogen |
| OCPs may improve | ovarian cysts, uterine fibroids, fibroadenomas and fibrocystic breast dz, ectopic pregnancy, acute PID, iron deficiency due to blood loss, mittleschmerz, acne, persistent anovulation, ovarian failure |
| Dep Provera Notes | IM every 3 months, amenorrhea after a year or so, weight gain can be significant, lipid changes, depression, HA, acne, delayed return of fertility and ovulation (up to 1 year), risk of osteoporosis. CAN be used in smokers or nursing moms |
| Implanon | is a 1 rod etonogestrol (progesterone only) implant that is effective for 3 years. |
| Major reason for dc of implants | menstrual irregularities. Also AEs include: amenorrhea, weight gain, acne, depression, may be less effective if obese |
| Dosing of Ortho Evra patches | 1 patch per week for 3 weeks, then one week off. |
| Ortho Evra patch notes | less effective if >90kg, may be a higher risk of venous thromboembolic events than OCPs due to higher consisten estrogen blood levels |
| Black box warning of Ortho Evra patches | Greater risk of thrombotic events (CVA, MI) than OCPs. (use with caution in smokers at any age, do not use in smokers >35) |
| Nuva ring contains | progestin and estrogen |
| When do you insert a nuva ring? | day 5 of menstrual cycle, wear 3 weeks, off one week. Insert new ring every 4th week. |
| Emergency Contraception Dose | Most effective if given within 72 hours of unprotected intercourse (can be taken 120hrs/5 days later) |
| MOA of emergency contraception | suppresses ovulation, changes cervical mucus and endometrium. NOT AN ABOTIFACIENT |
| Dosage of Plan B | can take both tablets at once; progesterone only |
| Preven ingredients | Estrogen and progesterone |
| Hormonal Emergency contraception | If given prior to menses, menses is 3-7 days earlier than expected, if given after ovulation, menses is at expected time or delayed. |
| Which drug carries a risk of Osteoporosis? | Depo Provera |
| _______ may cause an increase of venous thromboembolic events than OCPs | Ortho Evra Patches |
| Which types of emergency contraceptions are effective post implantation and result in abortion? | Mifepristone (RU486) and Paragard-T IUD |
| ________ is AKA "reversible sterilization" and is an excellent choice for women who cannot take estrogen | IUDs. They set up a "hostile environment", are not abortifacients, and do not cause infection (organisms do!) |
| This IUD can cause heavy bleeding and cramping (so NOT for women w/ menorrhagia or dysmenorrhea) | ParaGard (copper IUD) |
| This IUD slowly releases progestin which changes the cervical mucus | Mirena (note: increased incidence of ovarian cysts) |
| Essure is what type of birth control? | Non-incisional permanent birth control |
| _____ is a transcervical sterilization system using electrothermal energy | Adiana |