Certain factors place us at risk for the development of cardiovascular disease.
Which of the following are modifiable risk factors? Select all that apply.
Cholesterol level.
Blood pressure.
Family history.
Weight.
Smoking.
Correct Answer : A,B,D,E
These are all modifiable risk factors for cardiovascular disease, meaning they can be changed through lifestyle choices or medication. Cholesterol level, blood pressure, weight, and smoking all affect the health of the heart and blood vessels, and can increase the risk of developing conditions such as atherosclerosis, hypertension, heart attack, or stroke.
Choice C, family history, is not a modifiable risk factor for cardiovascular disease.
It is a non-modifiable risk factor, meaning it cannot be changed and is determined by genetics.
Having a family history of cardiovascular disease can increase the risk of developing it, but it does not mean that it is inevitable. Other non-modifiable risk factors include sex, older age, race and ethnicity.
Some normal ranges for the modifiable risk factors are:
• Cholesterol level: total cholesterol should be less than 200 mg/dL; LDL cholesterol should be less than 100 mg/dL; HDL cholesterol should be more than 40 mg/dL for men and more than 50 mg/dL for women; triglycerides should be less than 150 mg/dL.
• Blood pressure: normal blood pressure is less than 120/80 mmHg; elevated blood pressure is 120-129/less than 80 mmHg; hypertension stage 1 is 130-139/80-89 mmHg; hypertension stage 2 is 140 or higher/90 or higher mmHg.
• Weight: body mass index (BMI) is a measure of weight relative to height; normal BMI is 18.5-24.9 kg/m2; overweight BMI is 25-29.9 kg/m2; obese BMI is 30 or higher kg/m2.
• Smoking: smoking any amount of tobacco products can harm the cardiovascular system; quitting smoking can lower the risk of cardiovascular disease and improve overall health.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Class IV antidysrhythmics or calcium channel blockers have the action ofdecreasing the flow of calcium ionsinto the cardiac and vascular smooth muscle cells, thusdecreasing heart rate and contractions.
This leads to vasodilation and myocardial depression, which can help control arrhythmias, hypertension and angina.
Choice A is wrong because calcium channel blockers do not increase blood vessel spasm, but rather relax them by inhibiting the calcium influx that causes contraction.
Choice C is wrong because calcium channel blockers do not promote platelet aggregation, but rather inhibit it by interfering with the calcium-dependent binding of fibrinogen to platelets.
Choice D is wrong because calcium channel blockers do not enhance sympathetic nervous system activity, but rather counteract it by reducing the cardiac output and peripheral resistance.
Some normal ranges for reference are:
• Heart rate: 60-100 beats per minute
• Blood pressure: 120/80 mmHg
• Calcium: 8.5-10.5 mg/dL
Correct Answer is A
Explanation
This is because low potassium levels (hypokalemia) increase the sensitivity of the heart to digoxin and can lead to toxicity even with normal serum digoxin levels. Digoxin inhibits the sodium-potassium pump on the cardiac cells, which causes potassium to accumulate outside the cells.Low potassium levels in the blood create a larger gradient for potassium to move out of the cells, which enhances the effect of digoxin and can cause arrhythmias.
Choice B is wrong because calcium 9.2 mg/dL is within the normal range (8.5 to 10.2 mg/dL) and does not increase the risk of digoxin toxicity.However, high calcium levels (hypercalcemia) can potentiate the effects of digoxin and cause toxicity.
Choice C is wrong because sodium 140 mEq/L is within the normal range (135 to 145 mEq/L) and does not increase the risk of digoxin toxicity.However, high sodium levels (hypernatremia) can reduce the binding of digoxin to the sodium-potassium pump and decrease its efficacy.
Choice D is wrong because magnesium 2.2 mg/dL is within the normal range (1.7 to 2.4 mg/dL) and does not increase the risk of digoxin toxicity.However, low magnesium levels (hypomagnesemia) can increase the sensitivity of the heart to digoxin and cause toxicity.
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