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EKG Practice Test 3

This EKG practice test is designed to help you learn to recoginze all of the EKG rhythms that you will encounter during emergencies and during the AHA ACLS provider course.  Use these EKG practice tests to help you become proficient in your rapid rhythm identification.  

Go to EKG Practice Test #4

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Comments

    • ACLS says

      I recommend a thorough review of the section on bradycardia listed on this page. One of the main things is to practice by looking at EKG rhythms. Knowing what normal looks like is the best way to recognize when you see some an ekg because you’ll then immediately recognize abnormal.

      EKG rhythms

      Kind regards, Jeff

      Reply

  5. SADIE ALDINGER says

    I am not understanding how this is SVT with a rhythm of 150. I assumed that for SVT the rhythm needs to be greater than 150, whereas sinus tach is 100-150. On other similar strips that have a rhythm of 150, the answer is usually sinus tach. What is the best way to differentiate between the two?

    Question 12

    Reply

    • ACLS says

      SVT can have a rate of 150 and it may be difficult to differentiate between SVT and ST at times.

      Gathering a history and physical exam plays and important part in distinguishing the two:

      In sinus tachycardia, there is gradual onset and termination of symptoms like palpitation.

      SVT typically presents with sudden onset and termination of palpitations, light-headedness, chest pain, abnormal pulsations in the neck and dyspnea lasting between seconds to several hours.

      Less commonly, symptoms of SVT may include syncope secondary to vasovagal response or compromised cardiac output, and polyuria secondary to the diuretic effects of atrial natriuretic factor.

      Sinus tachycardia is usually due to physical, emotional, pathological (fever, hypovolemia, anemia, anxiety, infection, malignancy, myocardial infarction, congestive heart failure, pulmonary embolus, thyrotoxicosis) or pharmacological (caffeine, alcohol, nicotine, salbutamol, aminophylline, atropine, cocaine, doxorubicin, daunorubicin) stimulus.

      Majority of the SVT occurs without any underlying cause.

      Kind regards, Jeff

      Reply

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