A newborn weighs 3400 grams.

The healthcare provider has ordered 0.2 mg/kg of atropine sulfate subcutaneously.

Based on the label below, how much will the nurse administer in mL? (Write in your answer).

Answer and Explanation

The Correct Answer is ["1.7"]

Step 1: 2 mg/kg × 3400 g × (1 kg ÷ 1000 g) = 0.68 mg

Step 2: 68 mg × (1 mL ÷ 0.4 mg) = 1.7 mL.

The nurse will administer 1.7 mL.

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Correct Answer is C

Explanation

Choice A rationale

Fetal nutrition and excretion are carried out by the placenta. This statement is correct. The placenta provides essential nutrients to the fetus and removes waste products from fetal blood.

Choice B rationale

Fetal respirations are carried out by the placenta. This statement is correct. The placenta facilitates gas exchange, providing oxygen to the fetus and removing carbon dioxide.

Choice C rationale

The placenta filters harmful substances from maternal blood. This statement is incorrect. While the placenta provides some barrier function, it does not filter all harmful substances from maternal blood, and certain drugs and toxins can cross the placental barrier and affect the fetus.

Choice D rationale

The placenta receives maternal blood from the uterine arteries. This statement is correct. Maternal blood flows to the placenta via the uterine arteries, supplying oxygen and nutrients to the fetal side of the placenta.

A. A soft lanugo hair protects the skin from exposure to the amniotic fluid. B. We will apply cream to the baby's skin after delivery to make it smooth and soft. C. The baby's skin is covered with a protective fatty substance called vernix caseosa. D. There is a thick layer of subcutaneous fat on the baby so the water doesn't harm the skin.

Correct Answer is C

Explanation

Choice A rationale

Lanugo is a fine hair that covers the fetus but does not primarily protect the skin from amniotic fluid exposure. It mainly helps in thermoregulation and the adherence of the vernix caseosa.

Choice B rationale

While skin care after birth is important, applying cream post-delivery does not explain why the skin is protected during gestation.

Choice C rationale

Vernix caseosa is a protective, cheese-like coating that covers the fetus's skin. It provides a barrier against the amniotic fluid, preventing maceration of the skin during the pregnancy.

Choice D rationale

Although subcutaneous fat develops in the fetus, it is not responsible for protecting the skin from amniotic fluid. The primary protective mechanism is the vernix caseosa.

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A newborn weighs 3400 grams. The healthcare provider has ordered 0.2 mg/kg of atropine sulfate subcutaneously. Based on the label below, how much will the nurse administer in mL? (Write in your answer).

Nursing Test Bank

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A newborn weighs 3400 grams.

The healthcare provider has ordered 0.2 mg/kg of atropine sulfate subcutaneously.

Based on the label below, how much will the nurse administer in mL? (Write in your answer).