The nurse dries the neonate thoroughly and promptly changes wet linens. The nurse does so to minimize heat loss via which mechanism?

convection

evaporation

radiation

conduction

Answer and Explanation

The Correct Answer is B

A. Convection refers to the transfer of heat through air or water, such as when cool air circulates around the baby. While it can contribute to heat loss, drying the baby and changing wet linens specifically addresses evaporation.
B. Evaporation occurs when the baby's skin is wet (such as after birth or during a bath) and heat is lost as the moisture evaporates from the skin. Drying the neonate thoroughly and changing wet linens is aimed at preventing this form of heat loss.
C. Radiation is the transfer of heat from the baby to nearby cooler objects or surfaces (without direct contact), but drying and changing wet linens does not directly address this form of heat loss.
D. Conduction is the transfer of heat through direct contact with a cooler surface, such as a cold surface or metal. It would be a concern if the baby was placed on a cold surface, but drying the baby helps prevent heat loss via evaporation, not conduction

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Correct Answer is C

Explanation

A. 0.75 mL would provide only 1.5 mg, which is half the prescribed dose
B. 15 mL would provide 30 mg, which is ten times the prescribed dose and could be dangerously toxic
C. 1.5 mL is correct and delivers exactly 3 mg of Stadol, matching the provider's order. To calculate the correct volume to administer, use the formula: Dose to give= ordered dose/concentration= 3/2= 1.5ml
D. 0.9 mL would give 1.8 mg, which is below the ordered dose.

A. difficulty in arousing B. deep tendons reflexes 2+ C. urinary output of 20 mL per hour D. respiratory rate of 10 breaths/minute

Correct Answer is B

Explanation

A. Difficulty in arousing suggests central nervous system depression, which can be a sign of magnesium toxicity. This is not a therapeutic effect and requires immediate assessment and possible discontinuation of the medication.
B. Deep tendon reflexes 2+ indicates normal neuromuscular function, which is consistent with therapeutic levels of magnesium sulfate. Loss of deep tendon reflexes is often the first sign of magnesium toxicity, so their presence at a normal level is reassuring.
C. Urinary output of 20 mL per hour is below the expected minimum (typically 30 mL/hour) and may suggest impaired renal function, which increases the risk of magnesium accumulation and toxicity.
D. Respiratory rate of 10 breaths/minute is lower than normal and may indicate respiratory depression, a serious sign of magnesium toxicity. A rate below 12 breaths/minute is concerning and not consistent with therapeutic dosing.

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The nurse dries the neonate thoroughly and promptly changes wet linens. The nurse does so to minimize heat loss via which mechanism?

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Naxlex Comprehensive Predictor Exams

The nurse is caring for a client in labor who has refused epidural anesthesia. An order was placed for Stadol 3mg IV Q4h PRN pain. The drug is supplied 2 mg per ml. How much of the medication should the nurse give?

Correct Answer is C

Explanation

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Correct Answer is B

Explanation

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