Anaemia

Question 1

What is Anaemia?

Answer 1

Decrease in red cell mass to a level that is insufficient for tissue respiration

Question 2

Anaemia is also a decrease in the —— to a level that has become insufficient to tissue respiration

Answer 2

Oxygen carrying capacity of the blood

Question 3

The protein that Carrie’s oxygen in the blood is?

Answer 3

Haemoglobin

Question 4

Hb is packaged in the —— of a red cell

Answer 4

Cytoplasm

Question 5

Decrease in Hb concentration appears to vary according to?

Answer 5

Age and sex

Question 6

At what conc does oxygen delivery to the tissue become impaired in males?

Answer 6

<13g/dl

Question 7

At what conc does oxygen delivery to the tissue become impaired in females

Answer 7

<12g/dl

Question 8

At what conc does oxygen delivery to the tissue become impaired in children 6-14years?

Answer 8

<12g/dl

Question 9

At what conc does oxygen delivery to the tissue become impaired in children aged 30days old - 6 years of age?

Answer 9

<11g/dl

Question 10

At what conc does oxygen delivery to the tissue become impaired for neonates(age 0-30days)

Answer 10

<13.5g/dl

Question 11

What is oxygen carrying capacity?

Answer 11

It is the total amount of oxygen the blood is able to deliver to the tissues per minute

Question 12

The protein that delivers oxygen to the tissues is?

Answer 12

Haemoglobin

Question 13

What is oxygen tension of blood?

Answer 13

The amount of oxygen present in 100ml of blood

Question 14

What is the normal oxygen tension of blood?

Answer 14

20ml of oxygen per 100ml of blood

Question 15

You only get 20ml of oxygen per 100ml of blood at what concentration of Haemoglobin?

Answer 15

15g/dl

Question 16

With decrease in Hb concentration Oxygen tension increases. T/F

Answer 16

False

Question 17

When is the corresponding partial pressure of Oxygen in the blood when the volume of oxygen is 20mls?

Answer 17

100mmHg

Question 18

When oxygen has a volume of 15ml what is the partial pressure then?

Answer 18

40mmHg

Question 19

What is the arterial Oxygen tension and Venous oxygen tension when the Hb conc is 15g/dl

Answer 19

Arterial-20mls
Venous-15mls

Question 20

What is the pressure head of Oxygen tension in the venous blood?

Answer 20

40mmHg

Question 21

Arteriovenous oxygen difference is?

Answer 21

5ml

Question 22

Every 100ml of blood will give —— ml of oxygen to the tissue and retain —— ml

Answer 22

5ml
15ml

Question 23

An individual with a Hb conc of 10g/dl has a Volume of oxygen and partial pressure as?

Answer 23

13.4ml and partial pressure <40mmHg

Question 24

What are the 4 physiologic adaptations to Anaemia?

Answer 24

1)Modulation of Hb oxygen affinity
2)Cardiovascular adaptive mechanism/compensatory mechanism
3)Redistribution of blood flow from less sensitive oxygen tissues to more sensitive oxygen tissues
4)Mexhanisms to widen the narrowed arteriovenous oxygen difference by bringing down the venous oxygen tension of the blood to a level far below 15ml

Question 25

Hb is an irreversible oxygen carrier. T/F

Answer 25

False. It’s reversible

Question 26

Abnormal Hb with excessive avidity for Oxygen are called?

Answer 26

HIGH- OXYGEN AFFINITY Hb

Question 27

In Anemic conditions, the line of oxygen by the normal Haemoglobin is increased. T/F

Answer 27

False