07 Cardiac Analysis

Question 1

P wave represents

Answer 1

atrial depolarization

Question 2

QRS complex represents

Answer 2

ventricular depolarization

Question 3

T wave represents

Answer 3

ventricular repolarization

Question 4

U wave may represent repolarization of Purkinje fibers.

Answer 4

May also be seen in hypokalemia, hypertension, or heart disease

Question 5

PR interval normal range is

Answer 5

0.12-0.20 seconds

Question 6

The duration of normal range of the QRS interval is

Answer 6

< 0.12 seconds

Question 7

ST segment is identified as

Answer 7

isoelectric, or above or below isoelectric line

Question 8

QT interval normal range is

Answer 8

0.35-0.40 seconds

Question 9

Answer 9

Junctional Rhythm

Question 10

Answer 10

lRate 150 PR Interval n/a

lRhythm regular QRS 0.08

lP waves absent

lInterpretation SVT

Question 11

Answer 11

lRate 60 PR Interval variable

lRhythm regular QRS 0.06

lP waves present

lInterpretation third degree or complete heart block

Question 12

Answer 12

lRate 150 PR Interval n/a

lRhythm regular QRS > 0.12

lP waves absent Interpretation V Tach

Question 13

Answer 13

lRate 30 PR Interval n/a

lRhythm regular QRS 0.16

lP waves absent

lInterpretation idioventricular rhythm

Question 14

Answer 14

lRate 80 PR Interval n/a

lRhythm irregular QRS 0.06

lP waves f waves

lInterpretation: Atrial fibrillation