After teaching a client who has an implantable cardioverter- defibrillator (ICD), a nurse assesses the client's understanding. Which statement by the client indicates correct understanding of the teaching?
"I will avoid sources of strong electromagnetic fields."
"Now I can discontinue my antidysrhythmic medication."
"I would participate in a strenuous exercise program."
"I would wear a snug-fitting shirt over the ICD."
The Correct Answer is A
A. Clients with ICDs should avoid strong electromagnetic fields, which can interfere with the device’s function. This is crucial for safety.
B. Discontinuing antidysrhythmic medication is not recommended unless instructed by the healthcare provider, as it could increase the risk of arrhythmias.
C. Strenuous exercise may be too strenuous for someone with an ICD and could increase the risk of arrhythmias or lead to ICD activation.
D. A snug-fitting shirt is generally not recommended because it may place pressure on the ICD site and cause discomfort.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Base deficit (HCO3): Acidosis: A base deficit indicates metabolic acidosis, but respiratory acidosis is more likely with the high rate of ventilation.
B. Acid excess (CO2): Acidosis: This is the correct answer. A high respiratory rate can lead to hyperventilation, decreasing CO2 levels and causing respiratory alkalosis, which may be a concern with an elevated rate.
C. Base excess (HCO3): Alkalosis: This would indicate metabolic alkalosis, but it is not as related to ventilator settings.
D. Acid deficit (CO2): Alkalosis: If the CO2 level is too low due to hyperventilation, this can lead to alkalosis, which the nurse is questioning here.
Correct Answer is C
Explanation
A. This is an underestimation due to a miscalculation of the dose rate.
B. This is an overestimation due to a miscalculation of the dose rate.
C. 1. Calculate the desired dose of dobutamine:
Desired dose (mcg/min) = Dose per kg (mcg/kg/min) x Weight (kg)
Desired dose (mcg/min) = 12 mcg/kg/min x 75 kg = 900 mcg/min
2. Convert mcg/min to mg/hr:
900 mcg/min x 60 min/hr = 54,000 mcg/hr
54,000 mcg/hr ÷ 1000 mcg/mg = 54 mg/hr
3. Calculate the concentration of dobutamine in the solution:
Concentration (mg/mL) = Total amount of dobutamine (mg) / Total volume (mL)
Concentration (mg/mL) = 1000 mg (1 g) / 250 mL = 4 mg/mL
4. Calculate the infusion rate (mL/hr):
Infusion rate (mL/hr) = Desired dose (mg/hr) / Concentration (mg/mL)
Infusion rate (mL/hr) = 54 mg/hr / 4 mg/mL = 13.5 mL/hr
5. Round to the nearest whole number:
Infusion rate (mL/hr) = 14 mL/hr
Therefore, the IV pump should be programmed for 14 mL/hr.
D. This is an overestimation due to a miscalculation of the dose rate.
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