A nurse is reviewing the laboratory results of a group of clients. Which of the following laboratory findings should the nurse report to the provider?

Glucose of 6.7 mg/dl

WBC of 7000/mm3

Platelet count of 160,000/mm3

Hemoglobin of 6.2 g/dl

Answer and Explanation

The Correct Answer is D

A. Glucose of 6.7 mg/dL: Critically low; however, this is an unrealistic value because normal fasting glucose is 70-100 mg/dL. This might be a typo—if it were 6.7 mmol/L, it would be within the normal range.

B. WBC of 7000/mm³: Normal range (4,000-11,000/mm³), so no immediate concern.

C. Platelet count of 160,000/mm³: Normal range (150,000-400,000/mm³), so no immediate concern.

D. Hemoglobin of 6.2 g/dL: Normal hemoglobin levels are 13.5-17.5 g/dL (males) and 12-15.5 g/dL (females). A hemoglobin of 6.2 g/dL is critically low, indicating severe anemia, blood loss, or bone marrow suppression, which may require blood transfusion or further investigation.

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Correct Answer is B

Explanation

B. Liver: Grapefruit juice inhibits CYP3A4 enzymes in the liver, which metabolize many drugs (e.g., statins, calcium channel blockers). This inhibition can lead to increased drug levels and toxicity.

A. Gall bladder – The gall bladder stores bile but does not metabolize drugs.

C. Kidney – The kidneys excrete drugs, but grapefruit juice does not significantly impact renal metabolism.

D. Small bowel – Some drug metabolism occurs in the intestines, but grapefruit juice primarily affects liver enzymes.

A. Place the patient on a cardiac monitor and check the patency of the IV B. Administer potassium intravenously in an IV push bolus C. Discontinue other medications that may affect potassium levels D. Avoid potassium rich foods in the diet

Correct Answer is A

Explanation

A. Place the patient on a cardiac monitor and check the patency of the IV: Hypokalemia (K+ = 2.5 mEq/L) can cause life-threatening cardiac dysrhythmias, so cardiac monitoring is essential. Additionally, potassium is highly irritating to veins, so IV patency must be confirmed to prevent extravasation and tissue damage.

B. Administer potassium intravenously in an IV push bolus- NEVER give potassium IV push as it can cause fatal cardiac arrest. Potassium must always be diluted and infused slowly.

C. Discontinue other medications that may affect potassium levels- Adjusting medications may be necessary, but not an immediate priority over cardiac monitoring.

D. Avoid potassium-rich foods in the diet - Incorrect because the client needs potassium replacement, not restriction.

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A nurse is reviewing the laboratory results of a group of clients. Which of the following laboratory findings should the nurse report to the provider?

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Naxlex Comprehensive Predictor Exams

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