Blood Gases and Related Tests

Blood Gases and Related Tests 150 150 Affordable Capstone Projects Written from Scratch

Blood Gases and Related Tests

HISTORY

The patient is a 64-year-old female being evaluated for a liver transplant. She has a long history of liver disease and recently began to complain of increased shortness of breath. The shortness of breath seems to subside when she lies down. She has a smoking history of 55 pack-years. Spirometry revealed an FEV1 of 1.23 L, consistent with a moderate obstructive ventilatory defect. She was referred for supine and upright shunt evaluation by the transplant surgeon.

 

PULMONARY FUNCTION TESTING

Personal data
Name: C.B.
Age: 64
Height: 65.5 in
Weight: 135 lb
Race: White

 

 

Shunt study
Supine
PB 763 PAo2 666
Fio2 0.989 a – ao2 243
Pao2 423 C(a –)o2 2.1
Paco2 34 QS/QT 26%
Sitting      
PB 763 PAo2 670
Fio2 0.989 a –ao2 243
Pao2 304 C(a –)o2 1.6
Paco2 31 QS/QT 42%

TECHNOLOGIST’S COMMENTS

Actual C(a – )o2 used for shunt calculation.

 

QUESTIONS

  1. Interpret the sitting and supine shunt values.
  2. What is the cause of the patient’s symptoms?
  3. What other tests might be indicated?
  4. On the basis of these findings, what treatment might be recommended?

 


 

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