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A nurse is reviewing the laboratory results of a child who was recently admitted for suspected rheumatic fever.

The nurse should identify that which of the following laboratory tests can contribute to confirming this diagnosis? (Select all that apply.)

Blood urea nitrogen (BUN)

Erythrocyte sedimentation rate (ESR)

Antistreptolysin O (ASO) titer

Partial thromboplastin time (PTT)

C-reactive protein (CRP).

Answer and Explanation

Correct Answer : B,C,E

This laboratory test can contribute to confirming a diagnosis of rheumatic fever.

Choice A is wrong because Blood urea nitrogen (BUN) is not used to diagnose rheumatic fever.

Choice D is wrong because Partial thromboplastin time (PTT) is not used to diagnose rheumatic fever.

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Correct Answer is C

Explanation

A preschool-age child who has a muffled voice and no spontaneous cough should be assessed first.

These symptoms may indicate epiglottitis, which is a life-threatening condition that requires immediate medical attention.

Choice A, B and D are also important but not as urgent as choice C. A toddler with nephrotic syndrome and facial edema, an adolescent with Crohn’s disease and recent weight loss, and a school-age child with diabetes mellitus and a blood glucose of 200 mg/dL should be assessed after the preschool-age child with a muffled voice and no spontaneous cough.

A. Oliguria. B. Hypertension. C. Hyporeflexia. D. Hyperactive bowel sounds.

Correct Answer is C

Explanation

A potassium level of.2 mEq/L is considered low.

Low potassium levels can cause muscle weakness and spasms.

Hyporeflexia refers to below normal or absent reflexes and can be a sign of muscle weakness.

Choice A is wrong because oliguria, or decreased urine output, is not a common symptom of low potassium levels.

Choice B is wrong because hypertension, or high blood pressure, is not a common symptom of low potassium levels.

Choice D is wrong because hyperactive bowel sounds are not a common symptom of low potassium levels.

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A nurse is reviewing the laboratory results of a child who was recently admitted for suspected rheumatic fever. The nurse should identify that which of the following laboratory tests can contribute to confirming this diagnosis? (Select all that apply.)

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A nurse is reviewing the laboratory results of a child who was recently admitted for suspected rheumatic fever.

The nurse should identify that which of the following laboratory tests can contribute to confirming this diagnosis? (Select all that apply.)