The nurse is caring for a client who is taking metformin (Glucophage) for hyperglycemia prior to admission. The nurse would question the following order for this client:
CT scan with contrast
Chest X-ray 1 view
V/Q scan
Bilateral lower extremity ultrasound
The Correct Answer is A
Choice A reason: CT scan with contrast is an order that the nurse should question for the client who is taking metformin for hyperglycemia. Metformin is a medication that lowers the blood glucose level by decreasing the hepatic glucose production and increasing the insulin sensitivity¹. Metformin can cause a rare but serious complication called lactic acidosis, which is a buildup of lactic acid in the blood that can cause symptoms such as weakness, nausea, vomiting, or breathing problems. CT scan with contrast involves injecting iodinated contrast material into the bloodstream, which can affect the kidney function and increase the risk of lactic acidosis in patients taking metformin. The nurse should consult with the prescriber and the pharmacist about the need to stop metformin before and after the CT scan with contrast, and to monitor the kidney function and the blood glucose level of the client.
Choice B reason: Chest X-ray 1 view is not an order that the nurse should question for the client who is taking metformin for hyperglycemia. Chest X-ray is a diagnostic test that uses a small amount of radiation to produce images of the lungs, heart, and chest wall. Chest X-ray does not involve any contrast material or affect the kidney function or the blood glucose level. The nurse should follow the standard precautions and procedures for performing a chest X-ray, such as verifying the client's identity, checking for pregnancy, removing any metal objects, and positioning the client properly.
Choice C reason: V/Q scan is not an order that the nurse should question for the client who is taking metformin for hyperglycemia. V/Q scan is a diagnostic test that measures the ventilation and perfusion of the lungs, and can detect any abnormalities such as pulmonary embolism or chronic obstructive pulmonary disease. V/Q scan involves injecting a radioactive tracer into the bloodstream and inhaling a radioactive gas, which are then detected by a special camera. V/Q scan does not affect the kidney function or the blood glucose level. The nurse should follow the standard precautions and procedures for performing a V/Q scan, such as verifying the client's identity, checking for allergies, explaining the procedure, and monitoring the vital signs.
Choice D reason: Bilateral lower extremity ultrasound is not an order that the nurse should question for the client who is taking metformin for hyperglycemia. Bilateral lower extremity ultrasound is a diagnostic test that uses sound waves to produce images of the blood vessels in the legs, and can detect any abnormalities such as deep vein thrombosis or peripheral arterial disease. Bilateral lower extremity ultrasound does not involve any contrast material or affect the kidney function or the blood glucose level. The nurse should follow the standard precautions and procedures for performing a bilateral lower extremity ultrasound, such as verifying the client's identity, explaining the procedure, and applying a gel and a probe to the legs.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: This is incorrect. SQ (subcutaneous) administration involves injecting a drug into the fatty tissue under the skin. This route is slower than IV or IM administration, as the drug has to diffuse through the tissue before reaching the bloodstream.
Choice B reason: This is incorrect. PO (by mouth) administration involves swallowing a drug and absorbing it through the digestive system. This route is the slowest of all, as the drug has to pass through the stomach and the liver before reaching the bloodstream. The drug may also be affected by the first pass effect, which reduces its bioavailability.
Choice C reason: This is correct. IV (intravenous) administration involves injecting a drug directly into a vein. This route is the fastest of all, as the drug enters the bloodstream immediately and reaches the target site quickly. The drug also has 100% bioavailability, meaning none of it is lost or degraded.
Choice D reason: This is incorrect. IM (intramuscular) administration involves injecting a drug into a muscle. This route is faster than SQ or PO administration, as the drug can be absorbed by the capillaries in the muscle. However, it is still slower than IV administration, as the drug has to cross the muscle membrane before reaching the bloodstream.
Correct Answer is A
Explanation
Choice A reason: This is correct. Blood pressure is the most important vital sign to monitor after giving sublingual nitroglycerin to a client with chest pain. Nitroglycerin is a medication that dilates the blood vessels and lowers the blood pressure. This can relieve the chest pain caused by angina, which is a condition where the heart muscle does not get enough oxygen due to narrowed or blocked arteries. However, if the blood pressure drops too low, the client may experience dizziness, fainting, or shock. Therefore, the nurse should check the blood pressure before and after giving nitroglycerin and report any significant changes to the doctor.
Choice B reason: This is incorrect. Blood glucose levels are not directly affected by sublingual nitroglycerin. However, some clients with chest pain may also have diabetes, which is a risk factor for heart disease. Diabetes is a condition where the body cannot regulate the amount of sugar in the blood. High or low blood sugar levels can cause symptoms such as thirst, hunger, fatigue, blurred vision, or confusion. Therefore, the nurse should check the blood glucose levels of clients with diabetes and follow the doctor's orders for managing their blood sugar.
Choice C reason: This is incorrect. Body temperature is not directly affected by sublingual nitroglycerin. However, some clients with chest pain may also have a fever, which is a sign of infection or inflammation. Fever is a condition where the body's temperature rises above the normal range. Fever can cause symptoms such as sweating, chills, headache, or muscle ache. Therefore, the nurse should check the body temperature of clients with fever and follow the doctor's orders for treating their infection or inflammation.
Choice D reason: This is incorrect. Respiratory rate is not directly affected by sublingual nitroglycerin. However, some clients with chest pain may also have difficulty breathing, which is a sign of heart failure or lung disease. Difficulty breathing is a condition where the client cannot get enough air into or out of the lungs. Difficulty breathing can cause symptoms such as coughing, wheezing, or gasping. Therefore, the nurse should check the respiratory rate of clients with difficulty breathing and follow the doctor's orders for improving their oxygenation.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.