AccessMedicine's Case of the Week: Cystic Fibrosis

From: Acid-Base Disturbances
AccessMedicine's Case of the Week: Cystic Fibrosis
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Case

A 28-year-old patient with cystic fibrosis presents with lethargy from home. The patient has IDDM and pancreatic insufficiency. He hasn't been feeling well the last 2 to 3 days. Vital signs are blood pressure 95/65 mm Hg, heart rate 105 bpm, and respiratory rate of 22 breaths per minute. 

Laboratory Data:

ABG

Basic Metabolic Panel

pH

7.09

Na

140 mEq/L

PaCO2

34 mm Hg

K

4 mEq/L

PaO2

60 mm Hg

Cl

80 mEq/L

HCO3

10 mEq/L

CO2

10 mEq/L

BUN

21 mg/dL

Cr

1.1 mg/dL

Glucose

234 mg/dL

Albumin

4 g/dL

EtOH

0 mg/dL

 

Question 1 of 6:

What is/are the primary acid-base disturbance(s) occurring in this case?

A - Metabolic acidosis only

B - Respiratory acidosis only

C - Metabolic acidosis and a respiratory acidosis

D - Metabolic alkalosis and a respiratory alkalosis

E - Metabolic alkalosis

F - Respiratory alkalosis


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Go to the profile of Eugene Simman
about 1 year ago

Answer is C