Mrs. A is a 50 year old lady with a history of chronic bronchitis and recurrent lung infections

Mrs. A is a 50 year old lady with a history of chronic bronchitis and recurrent lung infections.  She is admitted to the hospital for evaluation.  Given the data below, calculate specific parameters for this patient.

 

Ht 5′ 5″

Wt 150 lbs

TLC 4200 ml

RV 1300 ml

Vt WNL (within normal limits)

VE 6.0 L

IRV 1500 ml

RR 12

 

Calculate:

 

A. Vt =

 

 

B. VD =

 

 

C. VA = 

 

D. VC = 

 

E. RV/TLC% = 

 

 

F. ERV = 

 

 

G. FRC = 

 

H. IC =

 

 

II. Suzie Q is a 30 year old woman admitted to the MEC hospital for a pre-op evaluation.  Given patient and lab data, calculate the parameters listed.  ABG was done on room air.

 

Ht 5′ 2″ ABG: pH   7.35

Wt 155 lbs PaO2     82 torr

VE 5900 ml HCO3    24 mEq/L

TLC     4600 ml PaCO2   40 torr

ERV  1000 ml PECO2   28 torr

RV    1200 ml

RR 20

 

Calculate:

 

A. Vt = 

 

 

B. VC = 

 

 

C. IRV = 

 

 

D. FRC = 

 

 

E. IC = 

 

 

F. VT/VD ratio = 

 

 

G. Is the VT/VD ratio normal?

 

 

 

 

 

 

 

 

 

 

 

 

III. For the following given values, find the requested missing values. Spirogram reflecting this patient’s lung volumes and capacities

1. Given: FRC = 3200 ml IC = 2800 ml

ERV = 1100 ml TV = 550 ml

 

Find: TLC = ________ml RV = ________ml

 

IRV = ________ml VC = ________ml

 

 

 

 

 

 

 

 

 

 

 

 

 

2. Given: TLC = 5200 ml VC = 3700 ml

IC = 3100 ml TV = 600 ml

 

Find: RV = _________ml FRC = ________ml

ERV = ________ml IRV = ________ml

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