What is the most common cause of early decelerations in fetal heart rate?

Fetal head compression

Uteroplacental insufficiency

Cord compression

Maternal hypertension

Answer and Explanation

The Correct Answer is A

A. Fetal head compression. Early decelerations are typically caused by fetal head compression during contractions. This is usually a benign finding and indicates that labor is progressing.

B. Uteroplacental insufficiency. Uteroplacental insufficiency causes late decelerations, not early decelerations. Late decelerations are more concerning and indicate fetal distress.

C. Cord compression. Cord compression causes variable decelerations, not early decelerations. Variable decelerations can occur at any time during a contraction.

D. Maternal hypertension. Maternal hypertension is not a direct cause of early decelerations. It may contribute to uteroplacental insufficiency, which causes late decelerations.

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Correct Answer is C

Explanation

A. Duration: Duration refers to how long a single contraction lasts from start to finish, not the time between contractions.

B. Acme: Acme refers to the peak of the contraction, not the time between contractions.

C. Frequency: Frequency refers to the time from the beginning of one contraction to the beginning of the next contraction.

D. Onset: Onset refers to the start of an individual contraction, not the interval between contractions.

Correct Answer is ["10"]

Explanation

Using the formula:

Doserequired(mg) ÷ Doseavailable(mg/mL) = Volume(mL)

50 mg ÷ 5 mg/mL = 10 mL

Therefore, the nurse should administer 10 mL of indomethacin.

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What is the most common cause of early decelerations in fetal heart rate?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

What is measured from the beginning of one contraction to the beginning of the next contraction?

Correct Answer is C

Explanation

A nurse is preparing to administer indomethacin 50 mg PO. Available is indomethacin oral suspension 5 mg/mL. How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

Correct Answer is ["10"]

Explanation

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