Page 187 - Critical Care Nursing Demystified
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172 CRITICAL CARE NURSING DeMYSTIFIED
• QRS
• ST segment
• T wave
• QT interval
Now let us talk about what these mean and what they look like (see Figure 4–4A
and 4–4B and Table 4–4).
ST segment
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T
wave
P
wave
Q
S
Isoelectric
line
QRS
PRI
QTI
FIGURE 4–4A • ECG waveforms.

