N164 – Cardio Questions and Correct Answers | Latest Update
Course
N164
Institution
N164
SA Node bpm range?
 60-100 bpm
AV Node bpm range?
 40-60 bpm
Purkinje fibers bpm range?
 20-40bpm
The AV junction is formed by the AV node and the:
 Bundle of His
plateau phase
 many Ca2+ channels opened= Ca2+ influx that counteracts K+ exit
Torsades de pointes caused by
�...
Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
N164 – Cardio Questions and Correct
Answers | Latest Update
SA Node bpm range?
 60-100 bpm
AV Node bpm range?
 40-60 bpm
Purkinje fibers bpm range?
 20-40bpm
The AV junction is formed by the AV node and the:
 Bundle of His
plateau phase
 many Ca2+ channels opened= Ca2+ influx that counteracts K+ exit
Torsades de pointes caused by
 hypomagnesia
~ 1 ~ for inquiry mail me @ supergrades12@gmail.com
, Best Grades | Must Pass | Latest Update | Correct Answers | 2024/ 2025
QT length in hypocalcemia
 Hypocalcemia = SHORTENED QT
[ 0.33 - 0.43 ]
QT length in hypercalcemia?
 Hypercalcemia = PROLONGED QT
[ 0.33 - 0.43 ]
PR interval range
 [ 0.12- 0.2 seconds ]
(3-5 small boxes)
QRS complex
 [ 0.6 - 0.10 seconds ]
J point represents?
 End of depolarization & beginning of repolarization
~ 1 ~ for inquiry mail me @ supergrades12@gmail.com
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