CRAT ECG Waveform Measurements and Intervals 3

Question 1

In the 6-second strip method for calculating heart rate, you count the number of QRS complexes and:

Accepted Answer

Multiply by 10

Answer

Divide by 6

Answer

Multiply by 6

Answer

Divide by 10

Question 2

A notched or bifid P wave (P mitrale) is associated with:

Accepted Answer

Left atrial enlargement

Answer

Right atrial enlargement

Answer

Ventricular hypertrophy

Answer

AV nodal delay

Question 3

What does the TP segment of the ECG represent?

Accepted Answer

The true isoelectric baseline during diastole

Answer

Ventricular systole

Answer

AV node refractory period

Answer

Atrial repolarization

Question 4

Tall, peaked T waves on an ECG are classically associated with:

Accepted Answer

Hyperkalemia

Answer

Hypokalemia

Answer

Hypocalcemia

Answer

Hyponatremia

Question 5

The J point on the ECG is defined as:

Accepted Answer

The junction between the QRS complex and ST segment

Answer

The peak of the QRS complex

Answer

The beginning of the P wave

Answer

The end of the T wave

Question 6

A prominent U wave following the T wave is most commonly associated with:

Accepted Answer

Hypokalemia

Answer

Hyperkalemia

Answer

Hypercalcemia

Answer

Hypernatremia