A nurse is reviewing the laboratory values of a client who is taking atorvastatin. Which of the following laboratory values indicates the treatment has been effective?
Urine specific gravity 1.020.
BUN 15 mg/dL.
LDL 120 mg/dL.
Blood glucose 90 mg/dL.
The Correct Answer is C
Atorvastatin is a medication that belongs to a group of drugs called statins. It is used to lower blood levels of “bad” cholesterol (low-density lipoprotein, or LDL), to increase levels of “good” cholesterol (high-density lipoprotein, or HDL), and to lower triglycerides (a type of fat in the blood). The treatment has been effective if the LDL level is reduced, as high LDL levels can increase the risk of heart disease and stroke. A normal range for LDL is less than 100 mg/dL.
Choice A is wrong because urine specific gravity is a measure of how concentrated the urine is, not how much cholesterol is in the blood. A normal range for urine specific gravity is 1.005 to 1.0304.
Choice B is wrong because BUN (blood urea nitrogen) is a measure of how well the kidneys are working, not how much cholesterol is in the blood. A normal range for BUN is 7 to 20 mg/dL.
Choice D is wrong because blood glucose is a measure of how much sugar is in the blood, not how much cholesterol is in the blood.
A normal range for blood glucose is 70 to 100 mg/dL.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
This is because hydromorphone is a controlled substance and any unused portion should be discarded in the presence of a witness. Some possible explanations for the other choices are:
Choice A is wrong because storing the remaining half of the pill in the automated medication dispensing system could lead to errors in dosage or diversion of the drug.
Choice C is wrong because returning the remaining medication to the facility’s pharmacy is not a recommended practice for controlled substances and could also result in errors or diversion.
Choice D is wrong because placing the remaining half of the pill in the unit-dose package could compromise the integrity and stability of the medication and expose it to environmental factors.
Normal ranges for hydromorphone are not applicable as it is a synthetic opioid analgesic that does not have a therapeutic level.
However, some factors that may affect its pharmacokinetics and pharmacodynamics are age, weight, renal function, liver function, genetic polymorphisms, and drug interactions.
Correct Answer is C
Explanation
This is because nitroglycerin sublingual tablets are used to treat episodes of angina (chest pain) in people who have coronary artery disease. They work by relaxing the blood vessels so the heart does not need to work as hard and therefore does not need as much oxygen. Nitroglycerin sublingual tablets should not be chewed, crushed, or swallowed. They work much faster when absorbed through the lining of the mouth. Nitroglycerin sublingual tablets should be stored at room temperature in their original glass bottle to protect them from moisture and light.
Choice A is wrong because nitroglycerin sublingual tablets are not used to prevent angina attacks on a daily basis.
They are used as needed, either 5 to 10 minutes before activities that may cause attacks of angina or at the first sign of an attack.
Choice B is wrong because nitroglycerin sublingual tablets do not need to be discarded every 6 months.
They have a shelf life of up to 3 years if stored properly.
Choice D is wrong because nitroglycerin sublingual tablets should not be placed between the cheek and gum to dissolve.
They should be placed under the tongue or between the cheek and tongue. Placing them between the cheek and gum may reduce their effectiveness.
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