Thursday, January 6, 2011

Blood Gas Analysis Exam Review Questions


CHOICES


pH

a. acidic or decrease
b. alkaline or increase

Concentrations of HCO3 and PCO2:

a. HCO3 Normal
b. HCO3 Increased
c. HCO3 Decreased
d. PCO2 Normal
e. PCO2 Increased
f. PCO2 Decreased

Resulting Condition

a. Respiratory alkalosis
b. Respiratory acidosis
c. Metabolic alkalosis
d. Metabolic acidosis

Compensatory Mechanism

a. Increase retention and decrease excretion of HCO3 , H+ excretion by kidneys
b. Increase excretion and decrease retention of HCO3, H+ retention by kidneys
c. Increase retention and decrease excretion of CO2 by the lungs
d. Increase excretion and decrease retention of CO2 by the lungs


Tabulate the following conditions as to the following criteria:

1. Substance
2. Condition
3. pH
4. HCO3
5. PCO2
6. Resulting condition
7. Compensatory Mechanism

Conditions

1. Fever
2. Hysteria
3. Morphine
4. Alcohol
5. Hyperventilation
6. Bronchopneumonia


Blood Gas Analysis- Case Study

A 50 YR, OLD MALE PATIENT COMPLAINING OF HYPOXIA, FEVER AND COUGH WAS ADMITTED TO YOUR HOSPITAL. THE LABORATORY RESULTS WERE:

PCO2 = 60 mmHg

PO2 = 30 mmHg

SO % = 45 %

CBC:

HEMOGLOBIN = 11.5 mg/dL

HEMATOCRIT = .33 vol %

WBC = 12,500/cumm

DIFFERENTIAL COUNT:

NEUTROPHILS = 66 %

MONOCYTE = 8 %

EOSINOPHIL = 1 %

BASOPHIL = 0 %

LYMPHOCTES =25 %

FBS = 5.2 mmol/L

BUA = 10 mg/dL

BUN = 30 mg/dL

CREATININE = 5 mg/dL

TAG = 1 mg/dL

CHOLESTEROL = 140 mg/dL

ANSWER THE FOLLOWING QUESTIONS:

  1. WHAT IS THE pH OF BLOOD?
  2. WHAT COULD BE THE POSSIBLE DIAGNOSIS OF THE PATIENT? DEFEND YOUR ANSWER.
  3. ARE THERE ANY ABNORMAL VALUES IN THE LABORATORY RESULTS.
  4. WHAT FURTHER TESTS WOULD YOU RECOMMEND?


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