The nurse identifies which of the following as the most common cause of a myocardial infarction?
Atherosclerosis
Obesity
Hypertension
Diabetes Mellitus type 2
The Correct Answer is A
A. Atherosclerosis is correct. It is the primary cause of myocardial infarction (MI) due to the narrowing and eventual blockage of coronary arteries by plaque buildup, leading to reduced oxygen supply to the heart muscle.
B. Obesity is a risk factor for MI but is not the direct cause. It contributes to conditions like hypertension, diabetes, and atherosclerosis, which increase MI risk.
C. Hypertension increases the risk of MI by damaging blood vessels over time, but it is not the most common direct cause.
D. Diabetes Mellitus type 2 is a risk factor because it contributes to vascular damage and atherosclerosis, but it is not the primary cause of an MI.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["120"]
Explanation
Convert pounds to kilograms:
- 176 pounds / 2.2 pounds/kg = 80 kg
Calculate the enoxaparin dose:
- 80 kg 1.5 mg/kg = 120 mg
Round to the nearest whole number:
- 120 mg
Correct Answer is A
Explanation
A. Alcohol relaxes throat muscles, worsening obstructive sleep apnea (OSA). The client should be educated to avoid alcohol, even while using a CPAP machine.
B. CPAP improves sleep quality and reduces daytime sleepiness, making this statement accurate.
C. Weight loss can reduce the severity of OSA, and some clients may no longer need treatment after significant weight loss.
D. The CPAP machine functions by delivering continuous air pressure to keep the airway open, which is a correct statement.
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