The nurse is reviewing the client's laboratory values. Which serum laboratory value indicates to the nurse that a prescription for atorvastatin is having the desired effect for a client at risk for coronary artery disease?

High density lipoprotein (HDL)

Low density lipoprotein (LDL).

Creatine phosphokinase (CK).

Prothrombin time (PT).

Answer and Explanation

The Correct Answer is B

A. High density lipoprotein (HDL):
HDL levels are important for cardiovascular health as higher levels are associated with a lower risk of coronary artery disease. However, atorvastatin primarily targets LDL levels. While increasing HDL is beneficial, it is not the primary measure of atorvastatin's effectiveness.

B. Low density lipoprotein (LDL):
Atorvastatin is a statin medication used to lower LDL cholesterol levels, which is a major risk factor for coronary artery disease. A decrease in LDL levels indicates that the medication is having its desired effect, reducing the risk of cardiovascular events.

C. Creatine phosphokinase (CK):
CK levels are monitored to assess muscle damage or side effects related to statin use, such as rhabdomyolysis. While important for safety monitoring, changes in CK levels do not directly reflect the effectiveness of atorvastatin in managing cholesterol levels.

D. Prothrombin time (PT):
PT is used to evaluate blood clotting ability and is not directly related to the effectiveness of atorvastatin. It is more relevant for monitoring anticoagulant therapy rather than statin therapy for cholesterol management.

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Correct Answer is B

Explanation

A. A quiet, restful environment:
While a quiet and restful environment may be beneficial for general comfort, it does not specifically address the visual issues related to the use of mydriatic medications. Mydriatics cause pupil dilation, which can increase sensitivity to light, so a dimly lit room is more appropriate for managing light sensitivity.

B. A dimly lit room:
A dimly lit room is best for a client receiving mydriatic medication because mydriatics cause pupil dilation, which can lead to increased sensitivity to light and difficulty with bright environments. Reducing light exposure helps manage these symptoms and improve comfort.

C. A warm room temperature:
While maintaining a comfortable room temperature is important, it does not specifically address the visual discomfort caused by mydriatic medications. The primary concern here is light sensitivity, which is better managed with dim lighting rather than room temperature.

D. Cool, humidified air:
Cool, humidified air can be helpful for certain respiratory conditions or comfort but does not directly address the issue of light sensitivity associated with mydriatic medication use. The focus should be on managing light exposure rather than air quality.

A. Avoid prolonged exposure to direct sunlight. B. Stop the oral contraceptive immediately. C. Take the medications at least 12 hours apart. D. Use an additional form of contraception.

Correct Answer is D

Explanation

A) Avoid prolonged exposure to direct sunlight: While erythromycin can increase sensitivity to sunlight, this is not directly related to the interaction between oral contraceptives and erythromycin. The primary concern with erythromycin and oral contraceptives is their interaction rather than sun exposure.

B) Stop the oral contraceptive immediately: There is no need to stop oral contraceptives when taking erythromycin. However, erythromycin can potentially reduce the effectiveness of oral contraceptives, so additional precautions should be taken rather than discontinuing the contraceptive.

C) Take the medications at least 12 hours apart: Timing of administration is not a primary concern for this interaction. The main issue is the potential reduction in contraceptive efficacy rather than timing the doses of the medications.

D) Use an additional form of contraception: Erythromycin can potentially decrease the effectiveness of oral contraceptives due to its effect on liver enzymes and drug metabolism. It is advisable to use an additional form of contraception to prevent unintended pregnancy while taking erythromycin.

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The nurse is reviewing the client's laboratory values. Which serum laboratory value indicates to the nurse that a prescription for atorvastatin is having the desired effect for a client at risk for coronary artery disease?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

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Explanation

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Correct Answer is D

Explanation

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