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A nurse is preparing to administer cimetidine 300 mg IV over 15 min to a client. Available is cimetidine 300 mg/100 mL of 0.9% sodium chloride. The nurse should set the IV pump to deliver how many mL/hr?
(Round the answer to the nearest whole number. Use a leading zero if it applies. Done use a trailing zero.)

Answer and Explanation

The Correct Answer is ["400"]

Step 1: Determine the Total Volume Needed

Supplied concentration: 300 mg/100 mL
Prescribed dose: 300 mg
Total volume needed = 100 mL

Step 2: Convert Time to Hours

Prescribed infusion time = 15 minutes
15 minutes ÷ 60 minutes/hour = 0.25 hours

Step 3: Calculate the Infusion Rate (mL/hr)

Infusion rate = Total volume (mL) ÷ Time (hours)
Infusion rate = 100 mL ÷ 0.25 hours
Infusion rate = 400 mL/hr

The nurse should set the IV pump to deliver cimetidine at 400 mL/hr (rounded to the nearest whole number).

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Correct Answer is A

Explanation

A. Visual disturbances:
Visual disturbances, such as blurred or yellow-tinted vision, are common signs of digoxin toxicity. Clients should report any changes in vision promptly.
B. Potassium 4.4 mEq/L:
While electrolyte imbalances, particularly low potassium levels, can increase the risk of digoxin toxicity, a potassium level of 4.4 mEq/L is within the normal range and, by itself, does not indicate digoxin toxicity.
C. Insomnia:
Insomnia is not a typical sign of digoxin toxicity. Symptoms of toxicity are more likely to involve the gastrointestinal and visual systems.
D. Sudden weight gain:
Sudden weight gain can be a symptom of heart failure exacerbation but is not a direct indication of digoxin toxicity. Other signs, such as visual disturbances, are more specific to digoxin toxicity.

A. PT 11 seconds B. APTT 50 seconds C. Hematocrit 456 D. Platelets 300,000/mm²

Correct Answer is C

Explanation

A.PT (Prothrombin Time) 11 seconds: The prothrombin time measures the extrinsic pathway of the coagulation cascade. A PT of 11 seconds is within the normal range, and it indicates that the extrinsic clotting pathway is functioning appropriately. There is no need to report this value.
B. APTT (Activated Partial Thromboplastin Time) 50 seconds: The APTT measures the intrinsic pathway of the coagulation cascade. A value of 50 seconds is prolonged and may suggest that the client is receiving an effective anticoagulant dose. However, the APTT target range can vary based on the specific therapeutic goal and the heparin protocol in use. It's essential to follow the healthcare provider's guidance on the target APTT range.
C. Hematocrit 456: The normal range for hematocrit is usually expressed as a percentage. A value of 456 is outside the normal range and likely represents an error or a misinterpretation. The nurse should verify this value, as an extremely high hematocrit could be indicative of an issue such as dehydration or an analytical error.
D. Platelets 300,000/mm²: A platelet count of 300,000/mm² is within the normal range. There is no need to report this value as it suggests a normal platelet count.

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Naxlex Comprehensive Predictor Exams

A nurse is assessing a client who has heart failure and is taking digoxin. Which of the following findings should the nurse identify as an indication of medication toxicity?

Correct Answer is A

Explanation

A nurse is monitoring the laboratory values of a client who is receiving heparin. Which of the following values should the nurse report to the provider?

Correct Answer is C

Explanation

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