Introduction to review.
- Complete basic measurements.
- Do all previous work.
- Note if inverted T waves or ST segment depression is present in two or more leads that represent a pattern in Table 13.2. Here the ST segments are diffusely abnormal.
- Provide an interpretation.
Clinically-Based Critical Thinking: Interpretation
ST segment depression is consistent with ischemia or infarction. On a single EKG, the First Rule of the T Wave applies. The ST depression may represent infarction, which may be new or old. It may also represent ischemia. More information is needed. Is the patient symptomatic? Is there an old EKG available? If so, are these ST changes new?
Worksheet V.1
Complete the basic measurements, evaluation, and interpretation for the EKG below.
Parameter | Measurement | Interpretation |
HR | 79 | |
Rhythm | Sinus rhythm | |
PR | 0.16 to 0.18 | |
QRS | 0.08 | Normal |
QT | 0.40 | |
QTc | 0.460 | High |
P direction | ||
QRS direction |
Abnormal parameter | If present, note the leads or location |
Inverted T waves | The T waves are abnormal and point away from the septum (V1 and V2), and anterior (V3) walls. Since this is the only EKG, the First Rule of the T Wave applies |
ST depression | |
ST elevation | |
Q waves or equivalents |
Clinically-Based Critical Thinking: Interpretation
There is ischemic heart disease, but it maybe ischemia or infarction, and new or old. Clinically there may be an old NSTEMI, a new NSTEMI, or unstable angina. More information is needed.
Worksheet V.2
Complete the basic measurements, evaluation, and interpretation for the EKG below.
Parameter | Measurement | Interpretation |
HR | 79 | |
Rhythm | Sinus rhythm | |
PR | 0.16 to 0.18 | |
QRS | 0.08 | Normal |
QT | 0.40 | |
QTc | 0.460 | High |
P direction | ||
QRS direction |
Abnormal parameter | If present, note the leads or location |
Inverted T waves | The T waves are abnormal and point away from the septum (V1 and V2), and anterior (V3) walls. Since this is the only EKG, the First Rule of the T Wave applies. |
ST depression | |
ST elevation | |
Q waves or equivalents |
Clinically-Based Critical Thinking: Interpretation
There is ischemic heart disease, but it maybe ischemia or infarction, and new or old. Clinically there may be an old NSTEMI, a new NSTEMI, or unstable angina. More information is needed.
Worksheet V.2
Complete the basic measurements, evaluation, and interpretation for the EKG below.
Parameter | Measurement | Interpretation |
HR | 79 | |
Rhythm | Sinus rhythm | |
PR | 0.16 to 0.18 | |
QRS | 0.08 | Normal |
QT | 0.40 | |
QTc | 0.460 | High |
P direction | ||
QRS direction |
Abnormal parameter | If present, note the leads or location |
Inverted T waves | The T waves are abnormal and point away from the septum (V1 and V2), and anterior (V3) walls. Since this is the only EKG, the First Rule of the T Wave applies. |
ST depression | |
ST elevation | |
Q waves or equivalents |
Clinically-Based Critical Thinking: Interpretation
There is ischemic heart disease, but it maybe ischemia or infarction, and new or old. Clinically there may be an old NSTEMI, a new NSTEMI, or unstable angina. More information is needed.
Worksheet V.3
Complete the basic measurements, evaluation, and interpretation for the EKG below.
Parameter | Measurement | Interpretation |
HR | 79 | |
Rhythm | Sinus rhythm | |
PR | 0.16 to 0.18 | |
QRS | 0.08 | Normal |
QT | 0.40 | |
QTc | 0.460 | High |
P direction | ||
QRS direction |
Abnormal parameter | If present, note the leads or location |
Inverted T waves | The T waves are abnormal and point away from the septum (V1 and V2), and anterior (V3) walls. Since this is the only EKG, the First Rule of the T Wave applies. |
ST depression | |
ST elevation | |
Q waves or equivalents |
Clinically-Based Critical Thinking: Interpretation
There is ischemic heart disease, but it maybe ischemia or infarction, and new or old. Clinically there may be an old NSTEMI, a new NSTEMI, or unstable angina. More information is needed.
Worksheet V.4
Complete the basic measurements, evaluation, and interpretation for the EKG below.
Parameter | Measurement | Interpretation |
HR | 79 | |
Rhythm | Sinus rhythm | |
PR | 0.16 to 0.18 | |
QRS | 0.08 | Normal |
QT | 0.40 | |
QTc | 0.460 | High |
P direction | ||
QRS direction |
Abnormal parameter | If present, note the leads or location |
Inverted T waves | The T waves are abnormal and point away from the septum (V1 and V2), and anterior (V3) walls. Since this is the only EKG, the First Rule of the T Wave applies. |
ST depression | |
ST elevation | |
Q waves or equivalents |
Clinically-Based Critical Thinking: Interpretation
There is ischemic heart disease, but it maybe ischemia or infarction, and new or old. Clinically there may be an old NSTEMI, a new NSTEMI, or unstable angina. More information is needed.
Worksheet V.5
Complete the basic measurements, evaluation, and interpretation for the EKG below.
Parameter | Measurement | Interpretation |
HR | 79 | |
Rhythm | Sinus rhythm | |
PR | 0.16 to 0.18 | |
QRS | 0.08 | Normal |
QT | 0.40 | |
QTc | 0.460 | High |
P direction | ||
QRS direction |
Abnormal parameter | If present, note the leads or location |
Inverted T waves | The T waves are abnormal and point away from the septum (V1 and V2), and anterior (V3) walls. Since this is the only EKG, the First Rule of the T Wave applies. |
ST depression | |
ST elevation | |
Q waves or equivalents |
Clinically-Based Critical Thinking: Interpretation
There is ischemic heart disease, but it maybe ischemia or infarction, and new or old. Clinically there may be an old NSTEMI, a new NSTEMI, or unstable angina. More information is needed.