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 A
Explanation
The client should stay upright for at least 15 minutes after taking ferrous gluconate to prevent oesophagal irritation. Choice B is wrong because taking an antacid with ferrous gluconate can decrease its absorption and effectiveness.
Choice C is wrong because taking ferrous gluconate with milk can also reduce its absorption and cause gastrointestinal distress.
Choice D is wrong because black stools are a common and harmless side effect of ferrous gluconate and do not indicate a need to notify the provider. Ferrous gluconate is an iron supplement used to treat or prevent iron deficiency anaemia, a condition where the body does not have enough red blood cells to carry oxygen to the tissues.
Iron is an essential component of haemoglobin, the protein that carries oxygen in the blood.
Correct Answer is C
Explanation
Nitroglycerin transdermal patches are used to prevent episodes of angina (chest pain) in people who have coronary artery disease (narrowing of the blood vessels that supply blood to the heart). They work by relaxing the blood vessels so that the heart does not need to work as hard and therefore does not need as much oxygen.
Choice A is wrong because nitroglycerin transdermal patches cannot be used to treat an attack of angina once it has begun. They can only be used to prevent attacks of angina. If you have chest pain, you should use another form of nitroglycerin, such as sublingual tablets or spray.
Choice B is wrong because headache is a common side effect of nitroglycerin transdermal patches and does not mean that you should stop using them. However, you should tell your doctor if the headaches are severe or do not go away. You may also take acetaminophen to relieve the headache.
Choice D is wrong because you do not need to cover the patch with dry gauze when taking a shower. You may shower while you are wearing a nitroglycerin skin patch. If a patch loosens or falls off, replace it with a fresh one.
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