. A nurse is assisting with the collection of a bone marrow specimen from a preschooler. Which of the following actions should the nurse take?
Place the child in prone position to expose the posterior iliac crest.
Position the child side-lying to expose the vertebrae.
Place the child supine with legs flexed outward into a frog-like position.
Position the child sitting with their buttocks at the edge of the table.
The Correct Answer is A
A. The posterior iliac crest is the typical site for bone marrow aspiration in children. Placing the child in the prone position allows for proper access to the site while ensuring the child remains safe and stable during the procedure.
B. Positioning the child side-lying would expose the vertebrae but is not an optimal position for accessing the iliac crest for bone marrow aspiration.
C. The frog-like position (supine with legs flexed outward) is not an appropriate position for a bone marrow aspiration, as it does not provide the best access to the iliac crest or posterior iliac crest.
D. Sitting with the buttocks at the edge of the table would not adequately expose the posterior iliac crest, making it unsuitable for bone marrow aspiration.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Antidiarrheal agents are generally avoided in cases of shigella infection, as they can slow the elimination of the bacteria and worsen the infection.
B. A diet high in sodium is not appropriate; instead, oral rehydration therapy (ORT) is recommended to replace fluids and electrolytes lost during diarrhea.
C. Shigella is a bacterial infection, not a viral one, so antiviral medications would not be effective. Antibiotics may be prescribed in some cases, but antivirals are not appropriate.
D. Oral rehydration therapy is crucial to prevent dehydration and restore lost fluids and electrolytes in children with diarrhea from shigella.
Correct Answer is A
Explanation
A.This is the best action for the nurse to take. Continuous monitoring increases the risk of skin breakdown and pressure necrosis at the sensor site. Rotating the probe site every 2 to 4 hours ensures that the underlying tissue receives adequate circulation and prevents thermal or mechanical injury to the skin.
B. Taping the wire to the palm of the hand is not recommended because it may cause skin irritation or pressure injury. The sensor should be placed on a finger or toe, where blood flow is easily accessible.
C. Applying the sensor to the index fingernail is not ideal. Pulse oximetry is most accurate when applied to a finger or toe, but not directly on the nail itself. It should be placed on the skin near the nail.
D. While adequate perfusion is necessary for an accurate reading, warming the skin is not a routine requirement for probe placement. If a child has poor peripheral circulation (cold extremities), a different site with better perfusion, such as the earlobe or forehead, should be chosen rather than attempting to warm the skin, which could lead to accidental burns if a heat source is used improperly.
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