A nurse is caring for a client who has generalized petechiae and ecchymoses. The nurse should expect a prescription for which of the following laboratory tests?
Creatinine clearance
Potassium level
Platelet count
Prealbumin
The Correct Answer is C
A. Creatinine clearance is used to assess kidney function, not related to petechiae or ecchymoses.
B. Potassium levels are important for assessing electrolyte balance but are not directly related to petechiae or ecchymoses.
C. Petechiae and ecchymoses are signs of bleeding, often due to a low platelet count, so this test is appropriate.
D. Prealbumin is a protein marker for nutrition, not directly related to bleeding or clotting issues.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Dextrose 10% in water is commonly used to prevent hypoglycemia in patients receiving TPN if the TPN infusion is running low and a new bag isn't available immediately.
B. Discontinuing the infusion could lead to nutritional deficiencies or glucose instability.
C. Slowing the infusion rate does not solve the issue of a soon-to-be-depleted TPN bag and may cause fluid imbalance.
D. Lactated Ringer's solution is not a substitute for the nutritional requirements provided by TPN.
Correct Answer is A
Explanation
A. A constant P-R interval greater than 0.20 seconds is characteristic of a first-degree atrioventricular (AV) block.
B. A complete heart block (third-degree block) would result in varying P-R intervals, not a constant one.
C. Premature atrial complexes are premature beats that do not affect the P-R interval.
D. Atrial fibrillation would not have a consistent P-R interval; the atrial rhythm is irregular in fibrillation.
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