Lab Exam 2

Question 1

Calculating ECG Step 1

Answer 1

1. Pick R-R interval to measure
2. Find value for each R wave
3. Subtract each value (R2-R1)
4. Give answer in seconds

Question 2

Calculating ECG Step 2

Answer 2

Determine Amplitude

1. Pick R wave peak to measure in Y axis
2. Give answer in mV

Question 3

Calculating ECG Step 3

Answer 3

Select QRS complex in Lead 1 & 3 from SAME heartbeat

Question 4

Calculating ECG Step 4

Answer 4

1. measure Q, R, & S amplitude in Y-AXIS for BOTH Lead 1 &3
2. Add them for NETQRS

Question 5

Calculating ECG Step 5

Answer 5

1. Plot each NETQRS on triangle

2. Extend lines— must be perpendicular and make right angle

Question 6

Calculating ECG Step 6

Answer 6

1.Make line starting at origin, extend through intersection for MEAN ELECTRICAL AXIS in degrees

Question 7

Pulse Pressure

Answer 7

Systolic Pressure- Diastolic Pressure

Question 8

Mean Arterial Pressure (MAP)

Answer 8

(pulse pressure/3)+ diastolic pressure

Question 9

Respiratory Tree

Answer 9

1.trachea
2.bronchi
3.lobar bronchi
4.segmental bronchi
5.bronchioles
6. terminal bronchioles
7.respiratory bronchioles
alveolar ducts
9.aveolar sacs
10.alveoli