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Dysrhythmia Exam (MRMC) 2024/2025 Questions With Completed & Verified Solution.
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Dysrhythmia Exam (MRMC) 2024/2025 Questions With Completed & Verified Solution.
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Dysrhythmia Exam (MRMC)NSR - ANS -HR = 60-100 bpm
-PRI = 0.12-0.20 sec + constant across strip
-QRS < 0.12 sec
-No interventions needed (monitor pt.)
NSR - ANS
Sinus bradycardia - ANS -HR < 60 bpm
-PRI = 0.12-0.20 sec
-QRS < 0.12 sec
Sinus bradycardia - ANS Treatment:
-Asymptomatic: monitor pt.
-Symptomatic: atropine
Sinus bradycardia - ANS
Sinus tachycardia - ANS -HR = 100-150 bpm
-PRI = 0.12-0.20 sec
-QRS < 0.12 sec
-Identify & treat underlying cause
Sinus tachycardia - ANS
PAC - ANS -Regularity interrupted by single beat
-Rate dependent on underlying rhythm
-PRI = 0.12-0.20 sec
^PRI of ectopic beat will be different
-QRS < 0.12 sec
-Treatment: monitor pt.
PAC - ANS
SVT - ANS -HR = 150-250 bpm
-P waves run into preceding T waves + become indistinguishable
^Unable to determine PRI
-QRS = narrow
SVT - ANS Treatment:
-Stable: vagal maneuvers & adenosine
, -Unstable: cardioversion
SVT - ANS
Atrial flutter - ANS -Regular but occasionally irregular
-Atrial rate = higher (250-350 bpm) + ventricular rate < 100 (controlled)
-Well defined P waves
^Unable to determine PRI
-QRS < 0.12 sec
Atrial flutter - ANS Treatment:
-Stable: calcium channel blockers
-Unstable: cardioversion
Atrial flutter - ANS
Atrial fibrillation - ANS -Irregular
-Controlled rate = ventricular rate < 100 bpm + uncontrolled rate = ventricular rate > 100 bpm
-P waves = unorganized/undiscernible/fibrillating
^Unable to determine PRI
-QRS < 0.12 sec
Atrial fibrillation - ANS Treatment:
-Stable: anticoagulants & antiarrhythmics
-Unstable: cardioversion
Atrial fibrillation - ANS
Junctional rhythm (escape) - ANS -R-R intervals = constant + rhythm = regular
-Rate = 40-60 bpm
-P waves = just before/just after/buried in QRS complex (may be inverted)
^PRI < 0.12 sec if P wave precedes QRS complex
-QRS < 0.12 sec (normal)
-Treat underlying cause
Junctional rhythm (escape) - ANS
Accelerated junctional rhythm - ANS -R-R intervals = constant + rhythm = regular
-Rate = 60-100 bpm
-P waves = just before/just after/buried in QRS complex (may be inverted)
^PRI < 0.12 sec if P wave precedes QRS complex
-QRS < 0.12 sec (normal)
-Treatment: monitor pt.
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