Which ABG result indicates normal levels?

In the context of arterial blood gas (ABG) analysis, normal ranges for critical parameters are established to assess the acid-base status and respiratory function of a patient. The normal range for bicarbonate (HCO3-) in the blood is generally between 22 to 28 mEq/L. A value of 26 falls comfortably within this normal range, indicating that the bicarbonate level is balanced and not contributing to any acid-base disturbances.

This value suggests that the buffer system is functioning well to regulate pH levels in the body, which is crucial for homeostasis. A bicarbonate level at 26 mEq/L would indicate that the body's metabolic component is functioning adequately, which is essential for maintaining acid-base equilibrium.

In contrast, the other values provided indicate deviations from normal ranges. For instance, a pH of 7.16 reflects acidosis, and a PaCO2 of 82 indicates severe hypercapnia (elevated carbon dioxide), both of which suggest impaired respiratory or metabolic function. Normal values are vital for maintaining physiological stability, and the presence of normal bicarbonate is indicative of a healthy metabolic status amidst various concerns.