Contraception Flashcards
(34 cards)
How does CHC work
Inhibition of ovulation via negative feedback on Pituitary. Lowering FSH and LH hormones
CHC contains which two hormones
Oestrogen and Progesterone
Combined Oral Contraceptive pills contain
Ethinyl Oestradiol and 2nd gen progesterone
Commonly COCPs are monophasic, what does that mean?
They have the same dosage of hormones throughout the cycle
If COCP user missed two pills or more, what do we do?
Risk of ovulation. Use condom or abstain for 7 days
Side effects of COCP
Weight gain, high BP, and breakthrough bleeding
Explain breakthrough bleeding
Common in first few months, consider changing dosages if unresolved
If COCP users get headaches or dysmenorrhea in the pill free week, what can we offer them?
To simply continue usage of the pill, called Tricyclic Regimen.
Contraindications for COCP
Age>35, smoking, BP>160/100, DVT History, MI history.
CHC is generally the same contraindication as COCP, barring?
In women who suffer migraines with AURA
Progesterone only contraception mech of action?
They thicken the cervical mucous preventing sperm permeability. Obv stop ovulation aswell.
The POP pill of choice is called the mini pill, what are its contents
Either Norethisterone, or Levonorgestrel
% of efffctiveness of the mini pill?
99%
in Progesterone Injectable Contraception, what is injected and how often
DMPA, every 90 days +- 14 days.
DMPA method of injection
IM
Progesterone injectable contraception mechanism of action
Their mechanism of action is that they are injected, and they thicken the mucous and inhibit ovulation, forming a barrier to the sperm.
Up to 90% of women using DMPA injectable experience irregular menstrual bleeding pattern or amenorrhea, what alternative to DMPA doesn’t disrupt bleeding?
NET-EN, injected every 2 months not 3 like DMPA though
Side effects to DMPA/NET-EN
Irregular bleeding, weight gain, and a delay in return to fertility
Progesterone implant of choice
Nexplanon
Progesterone implant mechanism of action
Works by inhibiting the ovulation, thickening the cervical mucus and by thinning the endometrium
How is nexplanon implanted and where
Inserted sub-dermally 8 cm above the medial epicondyle under local anaesthesia. Nexplanon itself is 4cm in size
What is the Progesterone releasing intra uterine system?
Essentially the IUD
What is the progesterone releasing intrauterine system called in Europe
Mirena
The progesterone releasing intrauterine system releases 52mg of what
levonorgestrel
