Pressure and flow in arteries and veins

Question 1

Mention some methods of measuring blood pressure

Answer 1

Pressure transducer

Auscultation and Korotkoff sounds

Question 2

What do you use to measure blood pressure with auscultation?

Answer 2

Stethoscope

Sphygmomanometer

Question 3

What are the advantages of measuring BP with auscultation?

Answer 3

non-invasive

cheap

Question 4

What are the disadvantages of measuring BP with auscultation?

Answer 4

Accuracy
Discontinuous readings
Interindividual differences e.g. arm width, heart level

Question 5

What factors influence the pressure wave?

Answer 5

Stroke volume
Velocity of ejection
Elasticity of arteries
Total peripheral resistance

Question 6

What is the normal arterial pressure values?

Answer 6

120/80mmHg

Question 7

What factors easily influence blood flow and pressure in veins?

Answer 7

Gravity
Skeletal muscle pump
Respiratory pump
Venomotor tone
Systemic filling pressure

Question 8

What physical sign can be used to estimate central venous pressure?

Answer 8

Height of jugular collapse

Question 9

What factors can affect the skeletal muscle pump?

Answer 9

Rhythmic vs static exercise
Heat
Deep vein thrombosis
Varicose veins

Question 10

Explain venomotor tone

Answer 10

Refers to the state of contraction of smooth muscle surrounding the venues and veins, affects EDV