In assessing ABGs for common symptoms, which should be selected?

• A. Headache
• B. Fever
• C. Hypertension
• D. Increased appetite

Answer: (A)

Selecting headache as a common symptom associated with abnormal arterial blood gases (ABGs) is appropriate due to the physiological effects of altered gas exchange in the body. When ABGs indicate issues such as respiratory acidosis or alkalosis, patients often experience symptoms related to changes in oxygen and carbon dioxide levels, which can lead to headaches. Elevated carbon dioxide levels (hypercapnia) can cause vasodilation, increasing intracranial pressure, and resulting in headache symptoms.

In contrast, fever, hypertension, and increased appetite are not typically direct manifestations of abnormal ABG results. While fever may indicate inflammatory processes or infection, it does not specifically correlate with gas exchange issues in the same way headaches do. Hypertension could be a response to stress or pain but is not a classic sign of ABG abnormalities. Increased appetite generally has no direct link to ABG changes, making headache the most relevant symptom in this context.