Which finding on a prenatal visit at 10 weeks might suggest a hydatidiform mole?

A molar pregnancy is when there's a problem with a fertilised egg, which means a baby and a placenta do not develop the way they should after conception. A molar pregnancy will not be able to survive.

It happens by chance and is very rare. If you have a molar pregnancy, there is support available to help you.

Finding out you have a molar pregnancy

You may find out during your 1st pregnancy ultrasound scan at around 8 to 14 weeks.

Some people find out after their pregnancy ends with a miscarriage.

Finding out you have a molar pregnancy can be very difficult. A doctor or midwife can give you advice about the support that's available.

Urgent advice: Call a midwife or GP if:

You're pregnant and:

  • you have any bleeding or a dark discharge from your vagina
  • you're feeling or being sick often (severe morning sickness)
  • you think your bump looks bigger than it should for your stage of pregnancy
  • you have any other symptoms you're worried about

What happens next

If a midwife or doctor thinks you have a molar pregnancy, you'll need:

  • blood tests to check your level of the pregnancy hormone hCG, which is usually higher than normal in a molar pregnancy
  • an ultrasound scan
  • an appointment with a specialist (gynaecologist) or at an early pregnancy assessment unit

Treatment for a molar pregnancy

A molar pregnancy will not be able to survive.

It may end on its own, with a miscarriage.

If this does not happen, it's usually treated with a procedure to remove the pregnancy.

You'll usually be given a general anaesthetic before the procedure, so you'll be asleep.

Sometimes you might be able to take medicine to end a molar pregnancy.

Follow-up care

After treatment for a molar pregnancy you'll have regular blood and urine tests to check your hCG hormone level is returning to normal.

If your hormone level does not return to normal you will need further treatment.

Sex, contraception, and trying for a baby after a molar pregnancy

You can have sex as soon as you feel ready, but it's important to use contraception while you're getting follow-up care. Talk to a GP about what type of contraception is right for you.

Having a molar pregnancy does not affect your chances of getting pregnant again. But it's important to wait until your doctor tells you it's safe before you start trying for a baby.

Causes of a molar pregnancy

A molar pregnancy happens by chance. It's not caused by either parent doing something wrong.

You may be more likely to have a molar pregnancy if:

  • you're a young teenager or older than 45 when you get pregnant
  • you've had a molar pregnancy before
  • you have an Asian background

Types of molar pregnancy

A molar pregnancy is sometimes called a hydatidiform mole.

There are 2 types of molar pregnancy:

  • a complete molar pregnancy – this is where abnormal cells grow in the womb after conception and there's no sign of a baby
  • a partial molar pregnancy – this is where there may be early signs of a baby, but it cannot fully develop or survive

Where to get support

It can take time to recover after a molar pregnancy, both physically and emotionally.

The specialists looking after you can give you advice if you need support. They may be able to recommend support services in your area.

You can also get more information and support from:

  • Molar Pregnancy Support & Information
  • Miscarriage Association
  • Tommy's: Molar pregnancy – information and support
  • Charing Cross Hospital Trophoblast Disease Service

Page last reviewed: 10 September 2020
Next review due: 10 September 2023

Which finding on a prenatal visit at 10 weeks might suggest a hydatidiform mole?

1.After teaching a woman who has had an evacuation for a hydatidiform mole

(molar pregnancy) about her condition, which of the following statements

indicates that the nurse's teaching was successful?

A)“I will be sure to avoid getting pregnant for at least 1 year.” (s/s “brown

mole”) After evacuation of a hydatiform mole, long-term follow-up is necessary to

make sure any remaining trophoblastic tissue does not become malignant. Serial

hCG levels are monitored closely for one year and the client is urged to avoid

pregnancy for 1 year because it can interfere with the monitoring of hCG levels.

Iron intake and blood pressure are not important aspects of follow-up after

evacuation of a hydatiform mole. Use of a reliable contraceptive is strongly

recommended so that pregnancy is avoided.

B)“My intake of iron will have to be closely monitored for 6 months.”

C)“My blood pressure will continue to be increased for about 6 more months.”

D)“I won't use my birth control pills for at least a year or two.”

2.Which of the following findings on a prenatal visit at 10 weeks might lead the

nurse to suspect a hydatidiform mole?

A)Complaint of frequent mild nausea

B)Blood pressure of 120/84 mm Hg

C)History of bright red spotting 6 weeks ago

D)Fundal height measurement of 18 cm (larger than gestational age) ^ hCG

levels – just grapelike clusters, no fetus Findings with a hydatidiform mole

may include uterine size larger than expected. Mild nausea would be a normal

finding at 10 weeks' gestation. Blood pressure of 120/84 would not be associated

with hydatidiform mole and depending on the woman's baseline blood pressure

may be within acceptable parameters for her. Bright red spotting might suggest a

spontaneous abortion.

3.A client is diagnosed with gestational hypertension and is receiving magnesium

sulfate. Which finding would the nurse interpret as indicating a therapeutic level

of medication?

A)Urinary output of 20 mL per hour

B)Respiratory rate of 10 breaths/minute

C)Deep tendons reflexes 2+ (0 = hypo reflex if mag toxicity) With magnesium

sulfate, deep tendon reflexes of 2+ would be considered normal and therefore a

therapeutic level of the drug. Urinary output of less than 30 mL, a respiratory rate

of less than 12 breaths/minute, and a diminished level of consciousness would

indicate magnesium toxicity.

D)Difficulty in arousing

4.Upon entering the room of a client who has had a spontaneous abortion, the

nurse observes the client crying. Which of the following responses by the nurse

would be most appropriate?

A)Why are you crying?”

B)Will a pill help your pain?”

What are 2 signs of a hydatidiform mole pregnancy?

The most common symptoms of molar pregnancy include:.
Vaginal bleeding within the first three months of pregnancy..
Severe nausea and vomiting..
Preeclampsia (extremely high blood pressure).
High HCG levels..
Increases in abdominal size that occur much faster than in a healthy pregnancy..
No heartbeat or fetal movement..

What symptoms occurs with a hydatidiform mole?

Symptoms.
Abnormal growth of the uterus, either bigger or smaller than usual..
Severe nausea and vomiting..
Vaginal bleeding during the first 3 months of pregnancy..

Which of the following statements is true about a hydatidiform molar pregnancy?

Correct answer: A hydatidiform molar pregnancy is mostly a benign process that may occur due to an abnormal ovum becoming fertilized and growing into collection of cells in a cluster like formation.

How is a hydatidiform mole pregnancy diagnosed?

Ultrasonography is done to be sure that the growth is a hydatidiform mole and not a fetus or amniotic sac (which contains the fetus and fluid around it). (D and C) or obtained when tissue is passed and is then examined under a microscope (biopsy) to confirm the diagnosis.