History of Present Illness:

An elderly male with a history of bradycardia and HTN only on HCTZ presents for generalized weakness and a fall.  He was on his bedroom floor all night.  He denies pain in the chest or other complaints.

Vital Signs & Physical Exam:

Vital signs are normal except for a pulse of 40 .  Physical exam is otherwise normal but she is in the hallway.

An ECG is done

Computer Read: SB at 40 with first degree AVB, LAFB and moderated TWA

 

What is the most likely rhythm in this patient?

  • A) Sinus bradycardia with PAC’s
  • B) 1st degree AV block
  • C) 2nd degree AV block, type 1 
  • D) 2nd degree AV block, type 2
  • E) 3rd degree AV block 

SCROLL DOWN FOR ANSWERS & 1-MINUTE CONSULT

 

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ANSWERS:

What is the most likely rhythm in this patient?

  • A) Sinus bradycardia with PAC’s
  • B) 1st degree AV block
  • C) 2nd degree AV block, type 1 – CORRECT – However, since block is 2:1 safer to assume it is type 2.
  • D) 2nd degree AV block, type 2
  • E) 3rd degree AV block 

1-Minute EM Consult on the topic for this case from the Emergency Medicine 1-minute Consult Pocketbook

 

 

 

CASE LESSONS:

  1. Never
  2. Always