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Showing posts with label Electrophysiology. Show all posts
Showing posts with label Electrophysiology. Show all posts
Tuesday, August 8, 2023

Lead impedance change threshold and cause

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Low lead impedance  < 200 ohms Indicate insulation breach Usually inner insulation in a bipolar coaxial lead High lead impedance  > 20...
Saturday, December 24, 2022

Hysteresis

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In single chamber devices, for ventricular pacing, hysteresis allows a longer cycle length after a sensed event than after a paced beat.  It...
Thursday, July 7, 2022

Low voltage criteria on ECG mnemonic

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Entire amplitude of the QRS (R + S wave) must be < 5mm in all limb leads or < 10mm in all precordial leads. How do I remember this? Mn...
1 comment:
Wednesday, November 17, 2021

EKG quiz #1

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What does this EKG show?  Answer will be posted soon. -IkaN
2 comments:
Wednesday, November 3, 2021

Read EKGs with me #1

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Answer below:
Monday, November 1, 2021

Normal P wave ECG notes and mnemonic

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Here is the video:   Mnemonic: Notes: Sinus P waves Axis: 0 and +75 degrees Upright: Leads I, II, V5, V6 Inverted: aVR Duration: <120m...

Determining pacemaker type from EKG (RV pacing vs biventricular pacing)

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 Hello, cardiowesomites! Today we are going to learn how to determine pacemaker type from EKG (RV pacing vs biventricular pacing) Notes:
Saturday, October 2, 2021

ECG axis mnemonic (short version)

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Video here:   Notes below:
Sunday, December 6, 2020

Determining axis of EKG (isoelectric method) practice tracings

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How to determine axis of EKG (number, isoelectric method) with mnemonic

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Friday, April 24, 2020

Coronary artery dominance and EKG changes

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Hello, hello! Coronary arterial dominance is defined by the vessel which gives rise to the posterior descending artery (PDA).