A nurse is performing a heel stick blood glucose test on a newborn who is preterm.

The nurse should apply a heel warmer to the newborn’s foot before obtaining the blood sample for which of the following reasons?

To prevent infection

To increase blood flow

To reduce pain

To prevent bruising

Answer and Explanation

The Correct Answer is B

The correct answer is choice B. To increase blood flow. A heel warmer is applied to the newborn’s foot before obtaining the blood sample to increase the blood flow to the area and make it easier to collect the sample. A heel warmer can also reduce pain and bruising by dilating the blood vessels and reducing the need for multiple punctures.

Choice A is wrong because a heel warmer does not prevent infection. Infection prevention requires proper cleaning of the puncture site and disposal of the lancet.

Choice C is wrong because a heel warmer does not reduce pain by itself. Pain reduction requires other measures such as cuddling, feeding, and distraction.

Choice D is wrong because a heel warmer does not prevent bruising. Bruising prevention requires applying pressure to the puncture site after collecting the sample.

Normal ranges for blood glucose levels in newborns vary depending on the method of measurement, but generally they are between 2.6 and 6.0 mmol/L.

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Correct Answer is ["A","C","D"]

Explanation

Choice A rationale: Identification of a fetal heartbeat via Doppler or ultrasound is a positive sign because it provides objective, undeniable evidence of a living fetus separate from the maternal systems.

Choice B rationale: Palpation of the fetal outline is considered a probable sign of pregnancy. While suggestive, it is not definitive because uterine tumors or myomas can occasionally mimic the fetal shape.

Choice C rationale: Visualization of the fetus through ultrasound or radiographic study is a positive sign. It offers direct, objective confirmation of the embryo or fetus, leaving no room for diagnostic error.

Choice D rationale: Verification of fetal movement by a trained healthcare provider is a positive sign. Unlike subjective maternal "quickening," professional palpation of movement confirms the presence of a live, developing fetus.

Choice E rationale: A positive hCG test is a probable sign of pregnancy. Human chorionic gonadotropin levels can be elevated by certain medications, molar pregnancies, or specific types of choriocarcinoma tumors.

A. Jitteriness B. Tachycardia C. Hyperthermia D. Hypertonia

Correct Answer is A

Explanation

The correct answer is choice A. Jitteriness.Jitteriness or tremors are the most common signs of hypoglycemia in a newborn baby.

Hypoglycemia is when the level of sugar (glucose) in the blood is too low.

Glucose is the main source of fuel for the brain and the body.In a newborn baby, low blood sugar can happen for many reasons, such as poor nutrition for the mother during pregnancy, making too much insulin because the mother has diabetes, or not enough oxygen at birth.

Choice B. Tachycardia is wrong because it is not a typical sign of hypoglycemia in a newborn baby.

Tachycardia is a fast heart rate that can be caused by other conditions, such as fever, infection, or dehydration.

Choice C. Hyperthermia is wrong because it is not a sign of hypoglycemia in a newborn baby.

Hyperthermia is a high body temperature that can be caused by overheating, infection, or inflammation.Hypoglycemia can cause low body temperature (hypothermia), not high body temperature.

Choice D. Hypertonia is wrong because it is not a sign of hypoglycemia in a newborn baby.

Hypertonia is increased muscle tone or stiffness that can be caused by brain damage, nerve damage, or genetic disorders.Hypoglycemia can cause weak or floppy muscles (poor muscle tone), not increased muscle tone.

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A nurse is performing a heel stick blood glucose test on a newborn who is preterm. The nurse should apply a heel warmer to the newborn’s foot before obtaining the blood sample for which of the following reasons?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is ["A","C","D"]

Explanation

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Correct Answer is A

Explanation

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A nurse is performing a heel stick blood glucose test on a newborn who is preterm.

The nurse should apply a heel warmer to the newborn’s foot before obtaining the blood sample for which of the following reasons?