Resp centre and ABG's

Question 1

What two groups of neurons lay in the medulla oblongata

Answer 1

Dorsal respiratory groups of neurons: trigger inspiratory impulses

ventral respiratory groups: trigger inspiratory and expiratory impulses

Question 2

How does lung stretch receptors work

Answer 2

sense lung stretch during breathing to terminate breath to prevent over-stretching. It detects abnormal changes in airway mechanical properties.

Question 3

What are fixed acids

Answer 3

they are non-volatile acids that have to be physically eliminated from the body typically via the kidneys. they are the products of dietary substrates.

Question 4

What steps do you take if the ABG is not normal

Answer 4

Determine if they have an acidaemia or alkalemia based on the pH.

If metabolic acidosis is present, calculate the anion gap.

Identify the compensatory process

Determine if a mixed acid-base disorder is present

Determine the cause.

Question 5

What are the two types of acidosis and alkalosis

Answer 5

respiratory acidosis and metabolic acidosis i.e. is it due to volatile acids or fixed acids or bicarb

Question 6

What are the categories of metabolic acidosis

Answer 6

loss of bicarbonate or the addition of acid

Question 7

What is non-anion gap metabolic acidosis

Answer 7

it is metabolic acidosis due to loss of bicarbonate, it is due to GI losses and chloride levels rise.

Question 8

What is the anion gap

Answer 8

It is the uncounted anions minus the uncounted cations is called the anion gap.

Question 9

What is an embolism

Answer 9

Any intravascular material that migrates from its original location to occlude a distal vessel.

Question 10

What is a PE

Answer 10

Pulmonary embolism, and the result of migration of all or part of a peripheral DVT to the lungs.