A nurse is teaching a client about risk factors for heart disease.
Which of the following risk factors is modifiable? (Select All that Apply.)
Family history.
Exercise.
Smoking.
Diet.
Age
Correct Answer : B,C,D
Choice A rationale
Family history of heart disease is considered a non-modifiable risk factor because it involves genetic predisposition and shared familial traits that cannot be altered by lifestyle changes. This includes congenital anomalies or inherited conditions like familial hypercholesterolemia, which significantly influence an individual's lifetime cardiovascular risk profile, making it a fixed variable.
Choice B rationale
Exercise is a key modifiable risk factor for heart disease because the lack of physical activity, or a sedentary lifestyle, directly contributes to poor cardiovascular health. Regular aerobic exercise improves endothelial function, lowers blood pressure, increases HDL cholesterol, and helps manage weight, thereby significantly reducing the overall atherosclerotic burden and cardiovascular risk.
Choice C rationale
Smoking is a major modifiable risk factor for heart disease because it directly damages the endothelial lining of the arteries, leading to atherosclerosis, vasoconstriction, and increased blood coagulability. Quitting tobacco use, which is a behavioral change, rapidly decreases the risk for myocardial infarction and stroke due to improved vascular health and oxygen-carrying capacity.
Choice D rationale
Diet is a highly modifiable risk factor, as dietary choices directly impact cholesterol levels, blood pressure, and body weight, all central to heart disease development. A diet high in saturated fats and sodium, and low in fruits and vegetables, promotes hypertension and dyslipidemia, whereas adopting a heart-healthy diet can substantially mitigate these risks.
Choice E rationale
Age is a non-modifiable risk factor because the risk of developing heart disease, especially atherosclerosis, naturally increases as an individual ages due to accumulated cellular damage, decreased vascular elasticity, and decades of exposure to other risk factors. This factor cannot be changed, although managing modifiable risks can improve heart health at any age.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Collecting the urine in the morning and dropping it off in the lab in the evening is incorrect because the specimen must be delivered promptly to the laboratory, typically within one hour, or refrigerated immediately to maintain sample integrity. Prolonged time or warm temperatures allow bacteria to multiply, leading to inaccurate culture results and potentially inappropriate diagnosis or treatment.
Choice B rationale
Thoroughly cleansing the urethral meatus is the critical initial step in obtaining a clean catch specimen, as this reduces the risk of contamination from normal flora and external debris. Using an antiseptic wipe to clean the area before urination ensures that the collected urine sample reflects the true microbial contents of the bladder and not contaminants from the skin surface.
Choice C rationale
Starting to collect the sample as soon as urination begins is incorrect because the initial urine flow should be voided into the toilet to flush out microorganisms residing in the distal urethra. The specimen should be collected from the midstream portion of the flow, ensuring that the collected sample is representative of the urine inside the bladder and minimizes external contamination.
Choice D rationale
Stating that a urine sample cannot be collected during menstruation is inaccurate, as a clean catch specimen can still be obtained, although careful cleansing is even more vital to prevent contamination with blood. While menstruation can complicate urinalysis interpretation, a clean catch midstream sample is often still feasible and necessary for culture or other analyses.
Correct Answer is C
Explanation
Choice A rationale
An increase of high-density lipoprotein (HDL) cholesterol is not the primary therapeutic effect of Lisinopril, which is an Angiotensin-Converting Enzyme (ACE) inhibitor and is not typically prescribed as a lipid-modifying agent. While improving overall cardiovascular health may indirectly benefit lipid profiles over time, the main pharmacological action is the inhibition of the renin-angiotensin-aldosterone system.
Choice B rationale
An increased heart rate is an undesirable and non-therapeutic effect of Lisinopril; in fact, ACE inhibitors are often used to manage conditions like heart failure where a decreased heart rate is sometimes a goal. Lisinopril works primarily on vascular smooth muscle to cause vasodilation, which ultimately lowers peripheral vascular resistance and does not directly increase cardiac chronotropy.
Choice C rationale
Decreased blood pressure is the primary and expected therapeutic outcome of Lisinopril, as it inhibits the conversion of Angiotensin I to the potent vasoconstrictor Angiotensin II. This inhibition leads to systemic vasodilation, reduced peripheral vascular resistance, and decreased aldosterone secretion, all contributing to a reduction in both systolic and diastolic blood pressure.
Choice D rationale
An increased blood pressure would indicate a lack of therapeutic effect or a potential failure of the medication to control the client's hypertension, necessitating a dose adjustment or change in antihypertensive regimen. Lisinopril is specifically prescribed to lower elevated blood pressure, making this outcome the opposite of the desired pharmacological action for hypertension management.
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