ECG ECG Lead Placement and Equipment 2

Question 1

What does the standard calibration signal on ECG paper look like?

Accepted Answer

1 mV = 10 mm tall square wave

Answer

1 mV = 5 mm tall square wave

Answer

2 mV = 10 mm tall square wave

Answer

0.5 mV = 10 mm tall square wave

Question 2

Which leads are referred to as the augmented limb leads?

Accepted Answer

aVR, aVL, aVF

Answer

I, II, III

Answer

V1, V2, V3

Answer

V4, V5, V6

Question 3

What is the recommended minimum number of leads monitored continuously in a telemetry unit?

Accepted Answer

2

Answer

1

Answer

6

Answer

12

Question 4

When a patient has a limb amputation preventing standard lead placement, where can the arm lead be repositioned?

Accepted Answer

On the shoulder or upper torso near the limb stump

Answer

On the chest near the sternum

Answer

On the opposite arm

Answer

On the abdomen

Question 5

What is the voltage gain setting used in half-standardization on an ECG?

Accepted Answer

5 mm/mV

Answer

10 mm/mV

Answer

20 mm/mV

Answer

2.5 mm/mV

Question 6

Which ECG artifact pattern is commonly caused by patient movement or shivering?

Accepted Answer

Muscle tremor artifact (high-frequency irregular baseline)

Answer

60 Hz AC interference (thick regular baseline)

Answer

Loose electrode artifact (intermittent flat line)

Answer

Respiratory artifact (slow undulation)