Pathology EMQ template.

Name:

Candidate number:

Theme: Acid-Base Handling

 

OPTION LIST

 

A	Metabolic acidosis	I	Respiratory acidosis with metabolic compensation
B	Metabolic acidosis with respiratory compensation	J	Respiratory alkalosis
C	Metabolic alkalosis	K	Respiratory alkalosis with metabolic compensation
D	Metabolic alkalosis with respiratory compensation	L
E	Mixed metabolic & respiratory acidosis	M
F	Mixed metabolic & respiratory alkalosis	N
G	Normal acid-base status	O
H	Respiratory acidosis	P

 

 

For each scenario below, choose the most appropriate answer from the list above. Each option may be used once, more than once or not at all.

 

1.  pH = 7.30, bicarbonate = 32 mmol/l

 

 

2. pH = 7.45, bicarbonate = 18 mmol/l

 

 

3. pH = 7.31, bicarbonate = 20 mmol/l

 

 

4. pH = 7.41, bicarbonate = 25 mmol/l

 

 

5. pH = 7.55, bicarbonate = 24 mmol/l

 

 

 

ANSWERS

1. I

2. K

3. A

4. G

5. J

Option K is unlikely to occur in real life, as it means that someone hyperventilates for long enough (days) for a metabolic compensation to occur.