Physician Orders Cardizem to infuse at 10 mg/hr. Available is 125 mg in 100 ml D5W. What is the rate in ml/hr?
13
7
25
8
The Correct Answer is D
Calculation:
Ordered Dose (D) = 10 mg/hr
Available Dose (H) = 125 mg
Quantity (Q) = 100 mL
Flow Rate (mL/hr) = (Dose Ordered (D) / Dose Available (H)) x Quantity (Q)
= (10 mg / 125 mg) x 100 mL
= 0.08 x 100 mL
= 8 mL/hr
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. “Turn off oxygen prior to monitoring the client.”: It is unnecessary and unsafe to turn off supplemental oxygen when applying ECG electrodes; oxygen should remain on to maintain adequate oxygenation.
B. “Add gel to the electrodes prior to applying them.”: Modern ECG electrodes are pre-gelled, so adding extra gel is not required and may interfere with electrode adhesion or signal quality.
C. “Clean the skin and clip hairs if needed.”: Proper skin preparation, including cleaning and hair removal, ensures good electrode contact and accurate ECG readings. This is the correct step that the AP should follow.
D. “Place the electrodes on the posterior chest”: Standard ECG electrode placement is on the anterior chest and limbs; posterior placement is not part of routine 12-lead ECG monitoring.
Correct Answer is C
Explanation
A. “I will go out and buy some warm, heavy socks to wear”: Keeping the feet warm is important in PAD to promote circulation and prevent cold-induced vasoconstriction. This demonstrates correct understanding of self-care measures.
B. “It’s going to be really hard but I will stop smoking”: Smoking cessation is crucial for managing PAD, as nicotine causes vasoconstriction and worsens arterial disease. This reflects appropriate understanding of self-management.
C. “I can use a heating pad on my legs if it’s set on low”: Using a heating pad is unsafe in PAD because impaired circulation reduces sensation, increasing the risk of burns. This statement reflects a misunderstanding of safe self-care practices.
D. “I should not cross my legs when sitting or lying down”: Avoiding leg crossing helps maintain proper blood flow in PAD. This indicates correct understanding of lifestyle modifications to prevent worsening ischemia.
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