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

Duration

Acme

Frequency

Onset

Answer and Explanation

The Correct Answer is C

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.

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Correct Answer is D

Explanation

A. Heart rate of 55/min. A heart rate of 55/min is bradycardia, which may indicate magnesium toxicity. This is a concerning sign and does not indicate safety to continue.

B. Urine output of 50 mL in 4 hr. A urine output of only 50 mL in 4 hours is too low (less than 30 mL/hr is concerning) and may indicate toxicity, since magnesium sulfate is excreted via the kidneys.

C. Diminished deep-tendon reflexes. Diminished deep-tendon reflexes (DTRs) may indicate magnesium toxicity. DTRs are monitored to assess for toxicity.

D. Respiratory rate of 16/min. A normal respiratory rate (12-20 breaths per minute) indicates that the magnesium sulfate has not caused respiratory depression, a sign of magnesium toxicity.

A. An artifact on the printout is very common B. Accurate information regarding FHR variability is not possible C. It cannot provide data about the uterine resting tone D. It is invasive and increases the risk for uterine infection

Correct Answer is A

Explanation

A. An artifact on the printout is very common. Artifacts are more common with external fetal monitoring, not internal fetal monitoring.

B. Accurate information regarding FHR variability is not possible. Internal fetal monitoring provides more accurate information about fetal heart rate (FHR) variability compared to external monitoring.

C. It cannot provide data about the uterine resting tone. Internal monitoring can measure the uterine resting tone more accurately than external methods.

D. It is invasive and increases the risk for uterine infection. Internal fetal monitoring requires inserting a device into the uterus, making it invasive and increasing the risk of infection.

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

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Naxlex Comprehensive Predictor Exams

. nurse is assisting with the care of a client with PROM and is receiving magnesium sulfate IV at 2 g/hr. Which of the following findings indicates that it is safe for the nurse to continue the infusion?

Correct Answer is D

Explanation

A disadvantage of internal fetal monitoring is:

Correct Answer is A

Explanation

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