Paramedic Manual Section 6

Question 1

What are the 2 distinct tasks the body faces in dealing with excess H+

Answer 1

• elimination of the H+
• prevention of pH change in the blood while transporting to

Question 2

What is the order of priority that the body uses to control blood ph?

Answer 2

1. Buffering
2. Respiratory Response
3. Renal Response

Question 3

What is normal blood pH?

Answer 3

7.35-7.45

Question 4

What are the 4 main buffer systems in the body for pH

Answer 4

1. bicarb/carbonic acid buffer system
2. phosphate
3. protein
4. hemoglobin buffer

Question 5

What is the ratio of bicarb to carbonic acid?

Answer 5

20/1

Question 6

How does the body retain or remove H2CO2 (Carbonic acid)

Answer 6

It can be retained or exhaled as CO2

Question 7

How does the body retain or excrete bicarb

Answer 7

through the kidneys

Question 8

Whenevr an imbalance in hydrogen ion concentration exists, what happens?

Answer 8

The respiratory centre is stimulated

Question 9

If the body needs to eliminate excess acid

Answer 9

The lungs respond by increasing the respiration rate to eliminate more acid as CO2

Question 10

If the body needs to retain acid, what happens?

Answer 10

lungs decrease resp rate, as to retain more CO2

Question 11

The respiratory mechanism has a 100% efficiency rate

Answer 11

False, as the H+ concentration approaches normal, the stimulus to the respiratory centre is lost

Question 12

The kidneys are responsible for the regulation of the levels of

Answer 12

non-volatile or fixed acids which include lactic acid, ketone bodies, phosphoric acid, and sulfuric acid