Titles
All titles Clinical Sense Prognosis: Your Diagnosis Explain Medicine QBank PrepperLibrary
Core specialties Subspecialties Organ systems Cutting edge innovationsAbout Clinical Odyssey
Why trust us Pricing Subscribe For organizationsEditorial
Authors Peer reviewersMedical Joyworks, LLC
About Jobs ContactMedicine
Last updated on: May 12th, 2022
Hi there!
You’re looking at a multiple-choice question from QBank Prepper (the newest of four distinct learning formats available in Clinical Odyssey). Try it out, and have fun improving your clinical skills.
Dysrhythmias 3
An 18-year-old man is seen at a university clinic in South Florida for a pre-participation sports physical. He was on the cross-country track team in high school. He has been in good health, reports no symptoms, and denies recent travel out of the area. The physical examination is within normal limits. A routine electrocardiogram (ECG) is obtained and shows a heart rate of 58 and a PR interval of 300 milliseconds. The ECG is otherwise within normal limits.
Which of the following is the most likely cause of the prolonged P-R interval?
Want to continue practicing?
- Enjoy unlimited access to 700+ learning modules.
- Safely improve your skills, anytime and anywhere.
- Get answers to your follow-up questions from practicing physicians.