Pathology EMQ template.

Name: Mohammed Ammar Abdul-Latif

Theme: Acid-Base Handling

 

OPTION LIST

 

A	Compensated Metabolic Acidosis	I	Respiratory Acidosis
B	Compensated Metabolic Alkalosis	J	Respiratory Alkalosis
C	Compensated Respiratory Acidosis
D	Compensated Respiratory Alkalosis
E	Metabolic Acidosis
F	Metabolic Alkalosis
G	Metabolic and Respiratory Acidosis
H	Metabolic and Respiratory Alkalosis

 

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. A 73 year old lady with COPD has the following blood results post surgery: pH = 7.34, PaCO2 = 8.2 kPa, HCO3 = 29.5 mEq/L

(Normal ranges: pH = 7.35-7.45, PaCO2 = 4.7-6 kPa HCO3 = 22-29 mEq/L)

 

2. A 22 year old anxious man is unwell and presents with the following blood gases:  pH = 7.57, PaCO2 = 3.1 kPa, HCO3 = 21.5 mEq/L

(Normal ranges: pH = 7.35-7.45, PaCO2 = 4.7-6 kPa HCO3 = 22-29 mEq/L)

 

3. A 42 year old man with heartburn presents with the following blood gases: pH = 7.51, PaCO2 = 5.2 kPa, HCO3 = 30.4 mEq/L

 

(Normal ranges: pH = 7.35-7.45, PaCO2 = 4.7-6 kPa HCO3 = 22-29 mEq/L)

 

4. Increasing ventilation may help treat this

 

 

5. Treat with intravenous sodium bicarbonate

 

ANSWERS

1. C

2. J

3. F

4. I

5. E