QuestionSBA
QuestionChoice
Compared to adult hemoglobin, it has a significantly higher affinity for oxygen
10006045
e
Fetal hemoglobin
QuestionChoice
Increases in CO2 decrease hemoglobin saturation, while decreases in CO2 increase hemoglobin saturation.
10006042
b
Decreased PaCO2
QuestionChoice
The affinity that hemoglobin has on oxygen is decreased when the pH of blood is decreased e.g. in acidosis.
10006044
d
High pH
QuestionChoice
A high level of 2,3-DPG increases the Bohr effect on Hb-O2 affinity and helps with O2 unloading in muscles during exercise. An increase in 2,3-DPG concentration can be found in congenital heart diseases, chronic lung diseases, some acquired anaemias, at high altitudes and in alkalosis.
10006041
a
Increased 2, 3 – DPG levels
QuestionChoice
Increased temperature decreases the affinity of hemoglobin for oxygen which allows for the unloading of oxygen in metabolising tissues.
10006043
c
Hypothermia
Concept
Chapter
2693
4468
Oxygen Dissociation Curve
Topic
193
Haematological Science
13755
Which of the following factors would lead to a reduced affinity of haemoglobin for oxygen?
a