Ace your Pharmacology Proctored ATI Exam with our practice tests. Dive into various topics with detailed explanations for every question, helping you grasp complex pharmacology concepts and ensure exam readiness.

Each practice test/flash card set has 50 randomly selected questions from a bank of over 500. You'll get a new set of questions each time!

Practice this question and more.


Which finding should prompt a nurse to withhold atenolol administration?

  1. Heart rate of 75/min

  2. Blood Pressure 130/85 mmHg

  3. Heart rate 46/min

  4. Blood Pressure 150/90 mmHg

The correct answer is: Heart rate 46/min

Atenolol is a beta-blocker medication used to treat conditions such as hypertension and angina. One of the primary effects of atenolol is to decrease heart rate by blocking beta-1 receptors in the heart. A heart rate of 46/min is bradycardia, which is a significant decrease in heart rate and may be a sign of an adverse reaction to atenolol. Therefore, a heart rate of 46/min should prompt a nurse to withhold atenolol administration to prevent further lowering of the heart rate. The other options, such as a heart rate of 75/min, blood pressure of 130/85 mmHg, or blood pressure of 150/90 mmHg, do not necessarily indicate a need to withhold atenolol administration.