👤 By the CinnaRN Clinical Content Team🕐 Updated 2026-08-23🏷️ Physiological Adaptation🔖 Free to read, print, and share
Also known as: molar pregnancy · hydatidiform mole · gestational trophoblastic disease · grape-cluster pregnancy
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Use this quick-reference guide to spot, treat, and prevent Hydatidiform Mole on the NCLEX. Keep it handy during review and on exam day!
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📒 The 1-minute cheat sheet
📌 Mech
Abnormal trophoblast → no viable fetus
Grape-like vesicle clusters in uterus
🩺 Signs
Dark brown/red vaginal bleeding
Uterus larger than dates
Severe N/V, early preeclampsia
🧪 Labs
hCG very high (>100,000)
US → 'snowstorm', no fetal heart
✅ Do
Suction D&C to evacuate
Serial hCG x1yr → r/o choriocarcinoma
No pregnancy x1yr → reliable contraception
📚 Hydatidiform Mole — full study notes
The cheat sheet above is your quick recall card. These notes go deeper — what it is, what to do first, what must be reported, and what to teach.
A hydatidiform mole is gestational trophoblastic disease in which the placenta develops into an abnormal mass of fluid-filled vesicles instead of a viable fetus. A complete mole has no fetal tissue (paternal chromosomes only), while a partial mole has some fetal/abnormal triploid tissue. Classic picture: grape-like vesicles, very high hCG, and uterus larger than dates.
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Key points
Understand these first
hCG levels are markedly elevated and rise abnormally rather than following a normal pregnancy curve.
Uterus is often larger than expected for gestational age and contains no fetal heart tones with a complete mole.
Painless dark-brown to bright-red vaginal bleeding, often with passage of grape-like vesicles, is characteristic.
Higher risk of early severe preeclampsia (before 20 weeks), hyperemesis gravidarum, and hyperthyroidism due to high hCG.
Treatment is suction curettage (D&C) to evacuate the uterus; tissue is sent for pathology to rule out choriocarcinoma.
Choriocarcinoma is a malignant complication, so serial hCG monitoring after evacuation is essential.
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Nursing priorities
What to do, in order
Monitor and report vaginal bleeding amount, and save passed tissue for examination.
Assess for signs of preeclampsia (BP, headache, visual changes) and hyperthyroidism even early in pregnancy.
Prepare the client for suction evacuation/D&C and provide emotional support for pregnancy loss.
Reinforce strict follow-up with serial hCG levels and reliable contraception during monitoring.
Administer Rho(D) immune globulin if the client is Rh-negative.
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Red flags — report now
Escalate immediately
Report early-onset severe hypertension, headache, or visual changes (preeclampsia before 20 weeks).
Report heavy bleeding, passage of vesicles, or signs of hypovolemic shock.
Rising or plateauing hCG after evacuation suggests persistent disease/choriocarcinoma and must be reported.
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Labs & values
Numbers to know
hCG: markedly elevated, often >100,000 mIU/mL (normal nonpregnant <5 mIU/mL)
Hgb 12-16 g/dL (assess for anemia from bleeding)
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Patient teaching
What patients must know
Avoid pregnancy for 6-12 months so hCG can be tracked to detect cancer; use reliable contraception.
Keep all serial hCG follow-up appointments even when feeling well.
Report any new bleeding, persistent nausea, or respiratory symptoms promptly.
❓ Hydatidiform Mole: NCLEX FAQs
What are the priority nursing interventions for Hydatidiform Mole?
Monitor and report vaginal bleeding amount, and save passed tissue for examination. Assess for signs of preeclampsia (BP, headache, visual changes) and hyperthyroidism even early in pregnancy. Prepare the client for suction evacuation/D&C and provide emotional support for pregnancy loss. Reinforce strict follow-up with serial hCG levels and reliable contraception during monitoring.
What are the warning signs of Hydatidiform Mole a nurse must report?
Report early-onset severe hypertension, headache, or visual changes (preeclampsia before 20 weeks). Report heavy bleeding, passage of vesicles, or signs of hypovolemic shock. Rising or plateauing hCG after evacuation suggests persistent disease/choriocarcinoma and must be reported.
What do I need to know about Hydatidiform Mole for the NCLEX?
hCG levels are markedly elevated and rise abnormally rather than following a normal pregnancy curve. Uterus is often larger than expected for gestational age and contains no fetal heart tones with a complete mole. Painless dark-brown to bright-red vaginal bleeding, often with passage of grape-like vesicles, is characteristic. Higher risk of early severe preeclampsia (before 20 weeks), hyperemesis gravidarum, and hyperthyroidism due to high hCG.
What patient teaching is important for Hydatidiform Mole?
Avoid pregnancy for 6-12 months so hCG can be tracked to detect cancer; use reliable contraception. Keep all serial hCG follow-up appointments even when feeling well. Report any new bleeding, persistent nausea, or respiratory symptoms promptly.
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Quick Tip
hCG levels are markedly elevated and rise abnormally rather than following a normal pregnancy curve.