EKG

Question 1

Unipolar Lead

Answer 1

active and passive electrode

Question 2

Active electrode (exploring):

Answer 2

senses/measures voltage at a location

Question 3

Passive electrode(indifferent)

Answer 3

placed on skin assumed to be at 0mV

Question 4

Bipolar Lead

Answer 4

voltage between 2 active leads.

+ side) - (-side

Question 5

Dark lines on grid

Light lines on grid

Answer 5

0. 2 seconds apart

0. 04 seconds apart

Question 6

what types of lead are standard limb lead

Answer 6

Bipolar limb leads

Question 7

Where are leads placed for standard limb lead

Answer 7

Lead1–> LA(+) RA(-)
Lead 2 –> LL(+) RA(-)
Lead 3–> LL(+) LA(-)

Question 8

What type of leads are Augmented Limb Lead

Answer 8

Unipolar limb leads

Question 9

Where are the augmented limb leads placed?

Answer 9

AVL(+)- left arm +
AVR(+)- right arm-
AVF(+)- left leg+

Question 10

What type of limb lead are precordial leads?

Answer 10

Unipolar chest leads

Question 11

Where are the precordial leads placed?

Answer 11

Lead 1 starts at right sternum followed by lead 2 at left sternum and they continue horizontally along the rib to the left armpit

Question 12

Precordial limbs use central terminal

Answer 12

central terminal is a machine that calculates the 0 value based on the signal of 3 electrodes through a high resistance resistor.