A diabetic client has an order for a CT of the abdomen with contrast. The nurse should assess the client's medications for which drug prior to sending the client to radiology?
Glargine
Metformin
Famotidine
Glucagon
The Correct Answer is B
Choice A reason: This choice is incorrect because glargine is not a drug that needs to be assessed before a CT scan with contrast. Glargine is a long-acting insulin that lowers blood sugar levels in people with diabetes. It is injected once a day, usually at bedtime, and works for 24 hours. The nurse should monitor the client's blood sugar levels and adjust the dose of glargine as needed, but it does not interfere with the CT scan or the contrast dye.
Choice B reason: This choice is correct because metformin is a drug that needs to be assessed before a CT scan with contrast. Metformin is an oral medication that lowers blood sugar levels in people with diabetes. It works by reducing the amount of glucose produced by the liver and increasing the sensitivity of the cells to insulin. However, metformin can cause a rare but serious condition called lactic acidosis, which is a buildup of lactic acid in the blood that can cause symptoms such as nausea, vomiting, abdominal pain, muscle weakness, and breathing problems. The risk of lactic acidosis is increased when metformin is combined with contrast dye, which can affect the kidney function and the clearance of metformin from the body. The nurse should check the client's kidney function and the dose and timing of metformin before the CT scan. The nurse should also instruct the client to stop taking metformin before and after the CT scan, as directed by the provider.
Choice C reason: This choice is incorrect because famotidine is not a drug that needs to be assessed before a CT scan with contrast. Famotidine is an antacid that reduces the amount of acid in the stomach. It is used to treat conditions such as gastroesophageal reflux disease (GERD), ulcers, and gastritis. It does not affect the blood sugar levels or the kidney function, and it does not interact with the contrast dye. The nurse should administer famotidine as prescribed and monitor the client's gastrointestinal symptoms, but it does not require any special precautions before the CT scan.
Choice D reason: This choice is incorrect because glucagon is not a drug that needs to be assessed before a CT scan with contrast. Glucagon is a hormone that raises blood sugar levels in people with diabetes. It is used as an emergency treatment for severe hypoglycemia (low blood sugar), when the person is unconscious or unable to swallow. It is injected into a muscle or under the skin, and it works by stimulating the liver to release glucose into the blood. The nurse should have glucagon available in case of hypoglycemia, but it does not affect the CT scan or the contrast dye.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["8 mL"]
Explanation
To calculate the amount of belimumab that the nurse should administer, we can use the following steps:
Convert the patient's weight from pounds to kilograms.
Multiply the patient's weight in kilograms by the dosage of belimumab (10 mg/kg) to find the total dosage required.
Determine the volume of the drug needed using the concentration of the available belimumab solution.
Given:
Patient's weight = 136 lb
Dosage of belimumab = 10 mg/kg
Available concentration of belimumab = 80 mg/mL
Let's calculate step by step:
Convert patient's weight from pounds to kilograms:
Patient's weight in kg = 136 lb × (1 kg / 2.2 lb) ≈ 61.8 kg
Calculate the total dosage required:
Total dosage = 10 mg/kg × 61.8 kg ≈ 618 mg
Determine the volume of the drug needed using the concentration of the available belimumab solution:
Volume of drug = Total dosage / Concentration of belimumab
Volume of drug = 618 mg / 80 mg/mL ≈ 7.7 mL
Rounding to the nearest whole number, the nurse should administer 8 mL of the belimumab.
Correct Answer is ["8 mL"]
Explanation
To calculate the amount of phenytoin oral suspension to administer, we can use the following formula:
Amount to administer (mL) = (Desired dose (mg) / Available dose (mg/mL))
Plugging in the given values:
Amount to administer (mL) = (200 mg / 125 mg/5 mL)
Now, let's solve for the amount to administer:
Amount to administer (mL) = (200 mg / 125 mg/5 mL) = (200 / 125) 5 = 8
So, the nurse should administer 8 mL of phenytoin oral suspension via the gastrostomy tube.
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