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Critical Rhythm MT

Scott Brickner

Created on September 26, 2025

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Transcript

Critical Rhythms

Practice Module

Instructions

  • This is a review for CRITICAL rhythms, which includes:
    • Asystole
    • Pulseless Electrical Activity
    • Ventricular Tachycardia
    • Ventricular Fibrillation
    • 3rd Degree AV Block (Complete Heart Block)
  • Each question is timed to help keep you on track since the actual exam is timed.
  • This is meant to be a review, any incorrect answer will have some review feedback to help.
  • If you need a bigger view of any image, Right Click on the image and select "Magnify Image."
  • If you need a clearer view of any video, hover over the video and select the Picture in Picture ( ) icon for an adjustable video.

Identify the Rhythm

00:30

  • The patient is unresponsive and pulseless

Identify the Rhythm

01:00

Identify the Rhythm

00:30

Identify the Rhythm

00:30

Identify the Rhythm

01:00

Identify the Rhythm

Identify the Rhythm

Identify the Rhythm

Identify the Rhythm

Identify the Rhythm

Identify the Rhythm

Identify the Rhythm

01:00

  • The patient is unresponsive and pulseless

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

00:30

Identify the Rhythm

00:30

  • The patient is unresponsive and pulseless

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

00:30

Identify the Rhythm

00:30

Identify the Rhythm

01:00

Identify the Rhythm

01:00

  • The patient is unresponsive and pulseless

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

01:00

  • The patient is unresponsive and pulseless

Identify the Rhythm

00:30

Identify the Rhythm

00:30

Identify the Rhythm

01:00

  • The patient is unresponsive and pulseless

Identify the Rhythm

01:00

Identify the Rhythm

01:00

Identify the Rhythm

00:30

Identify the Rhythm

00:30

  • The patient is unresponsive and pulseless

Identify the Rhythm

01:00

Identify the Rhythm

00:30

Resources

  • 2025 RN ECG REVIEW
    • Access via the menu on the left to review rhythms included on the CRITICAL rhythm section of the ECG exam.
    • Click Here to be directed to HealthStream for the entire Guided ECG Review Course
  • Standardized Procedure #3: Standardized Procedure for Emergency Care and Arrhythmia Treatment
  • Additional Resources for Review:
    • Life in the Fast Lane - EKG Library
    • EKG Academy
    • Scott Brickner, NPD Practitioner

Thank you so much!

  • You can access the optional resources in your HealthStream to complete any further review as needed.
  • Good Luck on your ECG Exam!
  • You can close the module at this time.

TOGETHER WE ARE LIMITLESS

AV Node: The Gatekeeper of Drama

When the heart’s messages get screened like spam calls.

Causes

Treatments

Causes

Treatments

Causes

Treatments

Click the rhythms for more information on each. Click once to reveal, click again to hide.

Keck Medicine of USC

MAKING THE IMPOSSIBLE, POSSIBLE.

TOGETHER WE ARE LIMITLESS

Ventricular Vibes: Unfiltered

When the backup band tries to headline the show.

Causes

Treatments

Causes

Treatments

Causes

Treatments

Click the rhythms for more information on each. Click once to reveal, click again to hide.

Keck Medicine of USC

MAKING THE IMPOSSIBLE, POSSIBLE.

TOGETHER WE ARE LIMITLESS

PEA, Asystole & Agonal: The Final Countdown

When in doubt, start compressions and pray to the ACLS gods.

Causes

Treatments

NO PULSE!

Click the rhythms for more information on each. Click once to reveal, click again to hide.

Keck Medicine of USC

MAKING THE IMPOSSIBLE, POSSIBLE.

TOGETHER WE ARE LIMITLESS

AV Node: The Gatekeeper of Drama

When the heart’s messages get screened like spam calls.

Causes

Treatments

Causes

Treatments

Causes

Treatments

Click the rhythms for more information on each. Click once to reveal, click again to hide.

Keck Medicine of USC

MAKING THE IMPOSSIBLE, POSSIBLE.

TOGETHER WE ARE LIMITLESS

Ventricular Vibes: Unfiltered

When the backup band tries to headline the show.

Causes

Treatments

Causes

Treatments

Causes

Treatments

Click the rhythms for more information on each. Click once to reveal, click again to hide.

Keck Medicine of USC

MAKING THE IMPOSSIBLE, POSSIBLE.

TOGETHER WE ARE LIMITLESS

PEA, Asystole & Agonal: The Final Countdown

When in doubt, start compressions and pray to the ACLS gods.

Causes

Treatments

NO PULSE!

Click the rhythms for more information on each. Click once to reveal, click again to hide.

Keck Medicine of USC

MAKING THE IMPOSSIBLE, POSSIBLE.

Click to zoom.

Click to zoom.

Antegrade

Ectopic focus above AV Junction

"Buried"

Ectopic focus at AV Junction

Junctional Morphology
Retrograde

Ectopic focus below AV Junction

Narrow QRS

Note the narrow junctional looking QRS

3rd AVB Morphology
3rd AVB w/ AF

Note the regularity of the QRS despite the AF

Polymorphic VT

Note the irratic, nature; multiple morphology

Pro-Tip!
Unique VT Morphologies
Torsades de Pointes

Note the regularity "turning of the points"

Pro-Tip!

Click to zoom.

Click to zoom.

Click to zoom.

Antegrade

Ectopic focus above AV Junction

"Buried"

Ectopic focus at AV Junction

Junctional Morphology
Retrograde

Ectopic focus below AV Junction

Narrow QRS

Note the narrow junctional looking QRS

3rd AVB Morphology
3rd AVB w/ AF

Note the regularity of the QRS despite the AF

Polymorphic VT

Note the irratic, nature; multiple morphology

Pro-Tip!
Unique VT Morphologies
Torsades de Pointes

Note the regularity "turning of the points"

Pro-Tip!

Click to zoom.