Obg Key Flashcards
Some important contraindications for the use of COCP:
√ Smoking.
√ Obesity (BMI > 30 Kg/m2).
√ Hx of thromboembolism.
√ Learning difficulties (as they may forget to take the pills).
√ Post-partum (if breastfeeding: CI for 6 months) (If not: CI for 6 weeks).
√ Migraine with aura.
√ HTN (even if well-controlled HTN).
If < 20 YO → Don’t prescribe IUS (Mirena®) or Depo-Provera (IM
Medroxyprogesterone acetate).
Depo-Provera → Risk for osteoporosis in such a young age.
• Many females who recently started on Depo-Provera (Progesterone-only-
injections) or Mirena tend to initially have bleeding more days than usual and
vaginal spotting between cycles.
Most females become amenorrheic after 1 year of use.
Therefore → Reassure and advice the patient to come back if these
unscheduled bleedings become problematic
.
What if bleeding becomes problematic?
→ COCP for 3 months (While still on Depo-Provera)
Or: Mefenamic acid or Tranexamic acid for 5 days.
• IUS (Mirena®) and Depo-Provera are not recommended if ♀ < 20 YO
• Nexplanon® “Etonogestrel implant” is safe < 20 YO.
• COCP and POP are also safe < 20 YO.
• In females with some learning difficulties
→ Do not prescribe Pills (COCP, POP) as they may forget taking the pills.
Intrauterine contraceptive systems (IUS) (eg, Merina) and Progesterone-
only implants (eg, Nexplanon) are used for long-term contraception
and thus
should be avoided if a woman has intentions and plans to get pregnant in the
near future (eg, within 6 months).
• After giving a birth, COCP is contraindicated in breastfeeding ♀ (for 6
months) and in non-breastfeeding ♀ (for 6 weeks).
• After Delivery:
- A - A breastfeeding non-breastfeeding ♀ can start taking COCP after 6 months of delivery.
♀ can start COCP after 6 weeks of delivery.
Progesterone only pills (POP) are safe in breastfeeding, they are given
orally; not injections, and they are short-term birth-control methods.
• No contraceptive method is required post-partum for 21 days after delivery.
• Depo-Provera (Medroxyprogesterone acetate) is IM injection given once
every 3 months. It is contraindicated in females < 20 YO.
However, it is first-line in females with SCA and Menorrhagia.
√ Menorrhagia = Heavy menstruation ▐ √ Dysmenorrhea = Painful menstruation ▐
√ Metrorrhagia = Irregular menses
◙ In young ♀, Not sexually active (i.e., she doesn’t require any
contraception as she is sexually inactive)
♦ Menorrhagia only (Heavy menstruation) → First line is mirena. pregnancy is wished soon or she is < 20 YO, then → tranexa
♦ Menorrhagia + Dysmenorrhea →
Mefenamic acid
♦ Menorrhagia + Irregular menses + Does not want to get pregnant → COCPs.
♦ Metrorrhagia (irregular menses) ± Menorrhagia/ Dysmenorrhea → COCPs.
√ Once there is dysmenorrhea (painful menstruation) → Mefenamic acid
√ Once there are Metrorrhagia (irregular menses) → COCPs
√ Menorrhagia only → Mirena (first-line) unless if she is < 20 YO or she wishes
to be pregnant in the near future, then → Tranexamic acid
√ Menorrhagia in a female with SCD → Depo-Provera (IM progesterone).
In a sexually active ♀ (she requires contraception) +
Menorrhagia/ ± Dysmenorrhea/ or Fibroids NOT distorting the
uterine cavity
The first-line → Mirena (IUS) = Levonorgestrel Intrauterine System
Q) What if Mirena is Contraindicated (e.g., the ♀ < 20 YO or no long
contraception is wished)?
If No contraindications to COCP (e.g. smoking, obesity, Hx of thromboembolism)
COCP
(or POP or implants).
• If there is uterine cavity distortion by fibroids → → implants (e.g. Nexplanon)
If ♀ with SCD “Sickle cell disease” and Menorrhagia → Depo-Provera IM.
◙ Emergency Contraception (had unprotected sex and wants contraception now)
√ presented within 72 hours (within 3 days) of the unprotected sex
→ Levonelle pill.
√ Presented within 120 hours (5 days) of the unprotected sex
or → IUD “Copper” EllaOne pill.
◙ The contraception that reduces the risk of Cervical Cancer
→ Condoms
Using condoms reduces the risk of HPV infections → thus, reduces the risk of
cervical cancer.
25 YO female is now 22 days after delivery and wishes a contraceptive
method that does not include needles. She would like to get pregnant after
6 months.
→ Progesterone-only pills.
√ IUS and Implants are for long-term contraception.
√ COCPs are contraindicated after delivery for 6 months in breastfeeding ♀.
√ Depo-Provera is IM injection (and she doesn’t want injections).
18 YO with some learning difficulties using condoms and want an alternative
contraceptive method.
Implants)
→ Nexplanon
√ COCP is safe < 20 YO if no contraindications. However, she has learning
difficulties and thus may forget to take the pills.
√ < 20 YO: IUS (Mirena) and Depo-Prover-a are better avoided (UKMEC2).
Example (3),
A 40 YO smoker and overweight female presents with heavy periods
(Menorrhagia).
She would like a long-term contraceptive method
.
→ IUS (e.g. Mirena = levonorgestrel intrauterine system).
• Remember, in a sexually active ♀ (requires contraception) with
menorrhagia/ dysmenorrhea/ or fibroids not distorting the uterine cavity
The first line → Mirena (IUS) = Levonorgestrel Intrauterine System
• Furthermore, this lady has contraindications to COCP (Obesity, Smoking).
After initiating Depo-Provera 2 months ago, a female presents complaining
of unscheduled bleeding.
→ Reassure and advice to return if bleeding become problematic.
The majority of females who start Depo-Provera (Progesterone-only IM
injections taken once every 3 months “12 weeks”) tend to have
intermenstrual spotting.
This usually settles after a year of Depo-Provera use.
Example (5),
A 16 YO female who is not sexually active presents complaining of
menorrhagia (heavy bleeding), Dysmenorrhea (Painful cycles) and Irregular
cycles.
→ COCP.
◙ In young ♀, Not sexually active (doesn’t requires contraception)
♦ Menorrhagia only (Heavy menstruation) → Tranexamic acid
♦ Menorrhagia + Dysmenorrhea → Mefenamic acid.
♦ Metrorrhagia (irregular menses) ± Menorrhagia/ Dysmenorrhea → COCP.
A 31 YO lady, known case of sickle cell disease, presents complaining of
heavy menstrual bleeding (menorrhagia).
She is not sexually active and has
no plans for children in the near future. The most appropriate Rx:
→ Depot medroxyprogesterone acetate (DMPA) = IM Depo-Provera.
Example (7),
A 39 YO woman who has completed her family wants a long-term
contraception. She has extensive fibroids that distort her uterine cavity
→ Nexplanon (progesterone-only subdermal implants,
(they are replaceable every 3 years)
If this exact female does not have fibroids or the fibroids are small
→ IUS (Mirena).
A 16 YO fit and healthy female presents complaining of severely painful
menstrual periods.
Her cycles are regular at 28 days. She denies being
sexually active.
→ Mefenamic acid.
◙ In young, non-sexually active females:
√ Once dysmenorrhea (painful cycles) → Mefenamic acid (NSAIDs)
√ Once irregular menses → COCP
√ Menorrhagia only → Tranexamic acid
Example (9),
A 33 YO female with HTN (controlled with ACE inhibitor ramipril), non-
smoker. The least appropriate contraceptive method for her is:
→ COCP.
HTN (even if well controlled) is a contraindication for COCPs.
◙ Some important contraindication for the use of COCP:
Smoker or ex-smoker
▐ Obesity (BMI > 30 kg/m2)
▐ Hx of
thromboembolism
▐ learning difficulties
▐ Post-partum (if breastfeeding →
CI for 6 months) (If not → 6 weeks)
▐ Migraine with aura
▐ HTN (even if
well controlled)
31 YO female wants a reversible contraceptive method. She had C-section
one year ago.
She also complains of menorrhagia and dysmenorrhea.
→ Mirena (levonorgestrel intrauterine system).
◙ Note that “reversible” doesn’t mean short-term!
◙ C-section is not a contraindication for Mirena!
◙ In sexually active ♀ (requires contraception) + menorrhagia/
Dysmenorrhea/ or fibroids not distorting the uterine cavity
√ The first line → Mirena (IUS) = Levonorgestrel Intrauterine System
(See above).
44 YO female presents asking for contraception advice.
She has completed
her family and needs no more children. US has incidentally revealed multiple
small submucosal fibroids. She is asymptomatic.
The most appropriate contraceptive advice → mirena (ius)
Again, small fibroids that are not distorting uterine cavity along with the need
of contraception are better manged using Mirena.
It would provide
contraception as well as could shrink the size of uterus
Lower abdominal pain (usually unilateral) + Recent Amenorrhea (6-8
weeks) ± Vaginal spotting ± Cervical excitation
→ Ectopic Pregnancy.
Vaginal US → empty uterus
For the management, before jumping into laparoscopy:
√ If the patient is stable → request beta-hCG.
• If B-hCG is > 1400 → LaparoScopy. (ectopic pregnancy)
• If < 1400 → wait, observe and repeat vaginal US later. (it might be a normal
pregnancy but the fetus is so tiny to be observed by US now).
√ If the patient is unstable from the start (e.g. SBP <90) → LaparotOmy.
◙ A pregnant with Hx of Caesarean Section develops profuse vaginal bleeding
+ Severe Abdominal Pain + Going into Shock (Hypotension and Tachycardia).
→ Uterine rupture.
◙ In the late weeks of pregnancy, painless vaginal bleeding
→ suspect placenta previa (do Transvaginal US).
painless vaginal bleeding and placenta is high (ie, not placenta previa)
→ suspect cervical ectropion.
Endometrial Carcinoma
◙ For any female > 51 YO presents with Postmenopausal vaginal bleeding
(spotting)
√ Suspect → ( emdometrial carcinoma)
Request initially If thick → Hysteroscopy + Biopsy).
transvaginal ultrasound to check endometrial thickness.
However, if the question asks about the (most likely Dx), atrophic vaginitis
and vulvovaginal atrophy are the commonest causes of postmenopausal
bleeding. However, the most worrisome diagnosis that need investigation by
US ± hysteroscopy and biopsy is endometrial carcinoma.
This is why our next
step would always be transvaginal US to R/O endometrial carcinoma.
◙ In the late weeks of pregnancy, painful vaginal bleeding (constant abd pain),
Tender, hard abdomen
→ suspect placenta abruption (do CTG)
◙ A pregnant lady in her third trimester presents with tachycardia ± fever + Hx
of PROM ± Vaginal discharge (often offensive and yellow)
→ suspect Chorioamnionitis.
◙ Lower abdominal pain, Fever, Deep dyspareunia, Dysuria, menstrual
irregularities, Vaginal or cervical discharge, Cervical excitation
→ PID (Pelvic Inflammatory Disease)
◙ Dyspareunia ± dysuria + frequency in > 51 YO
→ suspect (Give topical estrogen)
Atrophic vaginitis
◙ Dyspareunia ± dysuria, frequency + Hot flushes + Night sweats in > 51 YO
→ suspect (Give HRT: Hormonal Replacement).
If she is a smoker → Transdermal HRT instead of oral HRT (safer).
Postmenopausal syndrome
◙ 2ry amenorrhea after chemotherapy
→ suspect Premature ovarian failure.
♀ in child-bearing age, Chronic pelvic pain, Dysmenorrhoea, Deep
dyspareunia ± dysuria, dyschezia
→
Suspect (give NSAIDs and Paracetamol → a trial of COCP → Laparoscopy “definitive”).
Endometriosis
◙ lower abdominal pain and tenderness with High Fever + NO DISCHARGE.
Additional hints → (tubo ovarian abscess)
Sexually active and doesn’t use barriers).
(perform Pelvic US).
SUDDEN severe unilateral iliac fossa pain + Nausea + Vomiting
± Tender mobile mass
→ Ovarian Torsion (Refer her to Gynaecology to take her to the theatre!)
◙ African + Bloating + heavy regular periods + enlarged uterus
→ suspect (do transvaginal US)
fibroids → Polycystic ovarian syndrome ◙ Inability to conceive (infertility) + Obesity + Acne + ↑ LH
PCOS (request pelvis ultrasound)
(Other features: ↑ insulin “acanthosis nigricans”, ↑ androgens, menstrual
irregularities: amenorrhea/ oligomenorrhea).
◙ Chronic pelvic pain, worsens by standing, worsens premenstrually ± Post-
coital ache (deep dyspareunia).
→ Pelvic congestion syndrome
(it is non-organic; thus, laparoscopy is unremarkable)
◙ Primary amenorrhea + Cyclical pain ± mass at lower abdomen
→ Hematometra. (Accumulation of blood within uterus).
• When to give Varicella-Zoster Immunoglobulin (VZIG)?
Almost never used now (not recommended after the newest 2022 update).
1 ◙ 2 ◙ 3 ◙ • When to give oral Acyclovir? In the following cases:
Immunocompromised patients who develop Chicken Pox rash.
Pregnant ♀ who develop Chicken Pox
rash. (If severe rash → IV aciclovir).
Immunocompromised patients who are exposed (get in contact with) a
person with chicken pox but in 2 conditions:
1) If the exposure happened within the infectivity period (ie, 2 days before the
appearance of the rash on the person up until 5 days after rash appearance).
2) If their immunity to varicella is unknown or negative. Ie, if their serology for
varicella zoster immunity is negative. (If it is negative, this means they are not
immune to chicken pox).
4) pregnant ♀ who get in contact with a person with chicken pox but in 2
conditions:
1) If the contact happened within the infectivity period (ie, 2 days before the
appearance of the rash on the person up until 5 days after rash appearance).
2) If their immunity to varicella is unknown or negative. Ie, if they have not
had varicella (chicken pox) before, or their serology for varicella zoster is
negative. (If it is negative, this means they are not immune to chicken pox)