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).
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.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Double the dose if a dose is missed:
This instruction is incorrect. Clients should not double their dose of allopurinol if they miss a dose. Instead, they should take the missed dose as soon as they remember, unless it is almost time for the next dose. Doubling the dose can lead to overdose and potential side effects.
B. Reduce caffeine and acidic intake:
Reducing caffeine and acidic foods can help manage gout and lower uric acid levels, making this advice appropriate.
C. Avoid taking on an empty stomach:
While allopurinol can be taken with or without food, some clients might find it less irritating if taken with food. This guidance is intended to reduce gastrointestinal discomfort.
D. Consume 2 liters of water daily:
Drinking adequate fluids helps prevent kidney stones and promotes overall kidney health, which is especially important when taking allopurinol. This advice supports effective medication use and overall health.
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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