ECG and blood pressure

Question 1

What does ECG provide info about

Answer 1

Heart rate, problems with pacemaker activity and loss/damage to the conductive system or to cardiac muscle

Question 2

Waves during a heart cycle

Answer 2

P, QRS complex & T wave

Question 3

Blood pressure

Answer 3

the pressure of circulating blood on the walls of blood vessels

Question 4

Atrial systole

Answer 4

contraction of the atria by which blood is forced into the ventricles. Indicated by the fourth heart sound

Question 5

Ventricular systole

Answer 5

contraction of the ventricles, forcing blood into the aorta and pulmonary artery

Question 6

Atrial diastole

Answer 6

the period during which the atria are relaxing

Question 7

Ventricular diastole

Answer 7

the period during which the ventricles are filling and relaxing

Question 8

Systolic blood pressure

Answer 8

the highest pressure measured in the large arteries

Question 9

Diastolic blood pressure

Answer 9

“minimum” blood pressure. Relaxing

Question 10

Respiratory sinus arrythmia

Answer 10

the way the heart rate varies in synch with respiration. The rate increases on inspiration, and decreases on expiration.

Question 11

Baroreceptor reflex

Answer 11

reflex that can regulate the blood pressure

Question 12

Normal blood pressure

Answer 12

90-120/60-80

Question 13

High blood pressure

Answer 13

160/100

Question 14

Calculation of blood pressure

Answer 14

Systolic (top) minus diastolic (bottom) eg. 120-80 = 40

Question 15

Calculation of mean arterial pressure

Answer 15

systolic + 2x diastolic / 3

Question 16

Heart rate (b/m)

Answer 16

divide cardiac cycle time by 60. (60 seconds in a minute) eg. 60/0.75 = 80 beats/m