A nurse is reviewing a client's laboratory values. Which of the following values should the nurse report to the provider?

Hct 45%

Platelets 160,000/mm³

WBC 1,700/mm³

Hgb 14.7 g/dL

Answer and Explanation

The Correct Answer is C

Choice A: Hct 45% is not a value that the nurse should report to the provider. Hct, or hematocrit, is the percentage of red blood cells in the total blood volume. The normal range for Hct is 37% to 51% for men and 32% to 45% for women. Hct 45% is within the normal range and does not indicate any abnormality.

Choice B: Platelets 160,000/mm³ is not a value that the nurse should report to the provider. Platelets, or thrombocytes, are cell fragments that help with blood clotting and hemostasis. The normal range for platelets is 150,000 to 450,000/mm³. Platelets 160,000/mm³ is within the normal range and does not indicate any abnormality.

Choice C: WBC 1,700/mm³ is a value that the nurse should report to the provider. WBC, or white blood cells, are cells that fight infection and inﬂammation. The normal range for WBC is 4,500 to 11,000/mm³. WBC 1,700/mm³ is below the normal range and indicates leukopenia, which is a low number of white blood cells. Leukopenia can be caused by various conditions, such as viral infections, autoimmune disorders, bone marrow suppression, or chemotherapy. Leukopenia can increase the risk of infection and sepsis and requires prompt evaluation and treatment.

Choice D: Hgb 14.7 g/dL is not a value that the nurse should report to the provider. Hgb, or hemoglobin, is a protein in red blood cells that carries oxygen to the tissues. The normal range for Hgb is 13.5 to 17.5 g/dL for men and 12.0 to 15.5 g/dL for women. Hgb 14.7 g/dL is within the normal range and does not indicate any abnormality.

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Correct Answer is C

Explanation

Choice A Reason: This is incorrect because shortening of P-wave duration is not a sign of hyperkalemia or its reversal.

P-wave duration reﬂects the time it takes for the atria to depolarize and contract.

Choice B Reason: This is incorrect because restoration of QRS complex amplitude is not a sign of hyperkalemia or its reversal. QRS complex amplitude reﬂects the voltage or strength of the ventricular depolarization and contraction.

Choice C Reason: This is correct because the reduction of T-wave amplitude is a sign of hyperkalemia reversal. T-wave amplitude reﬂects the repolarization or recovery of the ventricles after contraction. Polystyrene sulfonate is a medication that lowers the serum potassium level by binding to it in the gastrointestinal tract and excreting it in the stool. High serum potassium level, or hyperkalemia, can cause cardiac arrhythmias and ECG changes, such as peaked T waves, prolonged PR interval, ﬂatened P waves, widened QRS complex, and ventricular fibrillation. By lowering the serum potassium level, polystyrene sulfonate can reverse these ECG changes and normalize the cardiac rhythm.

Choice D Reason: This is incorrect because the widening of the QRS complex is a sign of hyperkalemia, not its reversal. Widening of the QRS complex reﬂects the delay or impairment of ventricular depolarization and contraction.

A. Smallpox B. Hydrogen cyanide C. Botulism D. Anthrax E. Sarin

Correct Answer is ["A","C","D"]

Explanation

Choice A Reason: This is correct because smallpox is a highly contagious and deadly viral disease that can be used as a biological weapon. Smallpox was eradicated in 1980, but some samples of the virus are still stored in laboratories. If released intentionally, smallpox could cause a global pandemic.

Choice B Reason: This is incorrect because hydrogen cyanide is a chemical weapon of mass destruction, not a biological one. Hydrogen cyanide is a colorless gas that interferes with cellular respiration and causes rapid death.

Choice C Reason: This is correct because botulism is a serious and potentially fatal illness caused by a toxin produced by the bacterium Clostridium botulinum. Botulism can be used as a biological weapon by contaminating food or water supplies or by aerosolizing the toxin.

Choice D Reason: This is correct because anthrax is an infection caused by the spore-forming bacterium Bacillus anthracis. Anthrax can be used as a biological weapon by releasing the spores into the air or by contaminating food or water sources.

Choice E Reason: This is incorrect because sarin is a chemical weapon of mass destruction, not a biological one. Sarin is a nerve agent that blocks the transmission of nerve impulses and causes respiratory failure and death.

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A nurse is reviewing a client's laboratory values. Which of the following values should the nurse report to the provider?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is ["A","C","D"]

Explanation

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