the nurse is preparing to administer atenolol tenormin to a client with angina which vital sign would cause the nurse to question administering this d

ATI RN

Pharmacology ATI Proctored Exam 2023

1. The healthcare professional is preparing to administer atenolol (Tenormin) to a client with angina. Which vital sign would cause the healthcare professional to question administering this drug?

A. Respirations 12 breaths per minute
B. Pulse 52 beats per minute
C. Blood pressure 134/72
D. Oxygen saturation 95%

Correct answer: B

Rationale: Atenolol is a beta-blocker medication that can lower heart rate. A pulse of 52 beats per minute is relatively low and administering atenolol could further decrease the heart rate, potentially leading to bradycardia. Monitoring the pulse rate and holding the medication if the pulse is below the prescribed parameters is crucial to prevent adverse effects such as bradycardia and hypotension.

2. A client has a prescription for furosemide. Which of the following instructions should the nurse include?

A. Take furosemide in the morning.
B. Eat a diet high in potassium.
C. Avoid foods that are high in magnesium.
D. Limit your fluid intake to 1 liter per day.

Correct answer: B

Rationale: The correct answer is to 'Eat a diet high in potassium.' Furosemide is a loop diuretic that can cause hypokalemia (low potassium levels). Instructing the client to eat a diet high in potassium can help counteract the potassium-wasting effect of furosemide and prevent hypokalemia. Choice A is incorrect because furosemide can be taken at different times of the day based on individual needs. Choice C is incorrect as furosemide does not directly interact with magnesium levels. Choice D is incorrect because while fluid intake may need to be monitored, a specific limit of 1 liter per day is not a general instruction for all clients taking furosemide.

3. A client is receiving Gentamicin. Which of the following laboratory values should the nurse monitor to assess for nephrotoxicity?

A. Serum sodium.
B. Serum creatinine.
C. Serum potassium.
D. Serum glucose.

Correct answer: B

Rationale: When a client is receiving Gentamicin, the nurse should monitor serum creatinine levels to assess for nephrotoxicity. Gentamicin is known to potentially cause nephrotoxicity, leading to impaired kidney function. Monitoring serum creatinine levels helps in early detection of any kidney damage or dysfunction. Serum sodium, serum potassium, and serum glucose levels are not directly related to nephrotoxicity caused by Gentamicin, so they are not the appropriate values to monitor in this case.

4. What is the therapeutic use of Phenytoin?

A. Replacement in hypothyroidism to restore normal hormonal balance
B. Diminished accumulation of acid in the gastric lumen with lessened gastroesophageal reflux
C. Diminished seizure activity, termination of ventricular arrhythmias
D. Prevention of thrombus formation, prevention of extension of existing thrombi

Correct answer: C

Rationale: Phenytoin is primarily used to diminish seizure activity and is effective in terminating ventricular arrhythmias. It works by stabilizing neuronal membranes, reducing repetitive neuronal firing, and limiting the spread of seizure activity in the brain. While phenytoin does not have a direct role in preventing thrombus formation or extending existing thrombi, it is crucial in managing seizures and certain arrhythmias.

5. Which of the following is not an effect of the drug isoflurane?

A. Elevated lipid levels
B. Nausea
C. Increased blood flow to the brain
D. Decreased respiratory function

Correct answer: A

Rationale: Isoflurane is not known to cause elevated lipid levels. Common effects of isoflurane include nausea, increased blood flow to the brain, and decreased respiratory function. Elevated lipid levels are not typically associated with the administration of isoflurane, making choice A the correct answer.