A patient's ABG results are: pH 7.50, PCO2 25, HCO3 25, PO2 80. Which finding should the nurse expect as the body compensates for the acid-base imbalance?

The kidneys will excrete more HCO3 into the urine.

The respiratory system will increase RR.

The kidneys will create more HCO3.

The respiratory system will decrease respiratory rate (RR).

Answer and Explanation

The Correct Answer is D

A. While the kidneys do excrete HCO3 to help in metabolic compensation, this process is slower than respiratory compensation.

B. An increase in respiratory rate would further decrease CO2, worsening the alkalosis rather than compensating for it.

C. Creating more HCO3 would not compensate for respiratory alkalosis and would actually increase the pH further.

D. The body will decrease the respiratory rate to retain more CO2, helping to lower the pH and partially correct the alkalosis.

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Correct Answer is A

Explanation

A. Nosocomial (hospital-acquired) pneumonia is common in post-surgical patients, particularly those with atelectasis, as diminished ventilation can lead to infection. The green sputum and fever are signs of infection.

B. Lung tissue atelectasis may predispose a patient to pneumonia, but community-acquired pneumonia is less likely in a hospitalized patient, and the green sputum is more indicative of nosocomial infection.

C. Pulmonary edema is associated with fluid in the lungs but does not typically cause green sputum or elevated temperature, which suggest infection.

D. Left heart failure may lead to pulmonary edema but is not associated with green sputum or fever.

A. Creatine kinase level B. Homocysteine level C. Serum high-density lipoproteins (HDL) D. Serum potassium

Correct Answer is B

Explanation

A. Creatine kinase is an enzyme released when muscle tissue is damaged, often used in diagnosing muscle injuries or heart attacks, not coronary artery disease risk.

B. Elevated homocysteine levels are associated with an increased risk for coronary artery disease as it can damage the blood vessel walls and promote clot formation.

C. High levels of serum high-density lipoproteins (HDL) are protective against coronary artery disease, not a risk factor.

D. Serum potassium is important for cardiovascular health, but it does not directly correlate with coronary artery disease risk.

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A patient's ABG results are: pH 7.50, PCO2 25, HCO3 25, PO2 80. Which finding should the nurse expect as the body compensates for the acid-base imbalance?

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