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. below 1.0 B. 1.0-2.0 C. above 3.0 D. 2.0-3.0

Correct Answer is D

Explanation

A. Below 1.0: Too low, indicating inadequate anticoagulation, increasing the risk of clot formation.

B. 1.0-2.0: Subtherapeutic, meaning the medication is not effectively preventing clot formation.

C. Above 3.0: Too high, increasing the risk of bleeding complications

D. 2.0-3.0: The normal INR (International Normalized Ratio) for a client not on anticoagulants is 0.8-1.2. For clients on warfarin or other blood thinners, the target therapeutic range is typically 2.0-3.0, which reduces the risk of blood clots while minimizing the risk of bleeding. Some conditions, such as mechanical heart valves, may require a higher target range (2.5-3.5).

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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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