After the nurse obtains a blood sample from a client's right radial arterial client reports a sudden onset of pain at the arterial line insertion site. The nurse recognizes which physiological effect may be inducing the sudden pain?

DKA is a serious complication of diabetes mellitus characterized by hyperglycemia, ketosis, and metabolic acidosis. The laboratory results consistent with DKA include:

Elevated blood glucose level: A blood glucose level of 525 mg/dL (28 mmol/L) is significantly elevated and consistent with DKA.

Low arterial blood pH: A decreased arterial blood pH indicates acidosis, which is characteristic of DKA. Normal arterial blood pH ranges from 7.35 to 7.45.

Low bicarbonate (HCO3-) level: A low bicarbonate level indicates metabolic acidosis, which is also characteristic of DKA. Normal bicarbonate levels range from 21 to 28 mEq/L (21 to 28 mmol/L).

Among the options provided:

A) Arterial blood pH 7.5 and bicarbonate level 32 mEq/L (32 mmol/L):

This pH and bicarbonate level are indicative of alkalosis, which is not consistent with DKA.

B) Arterial blood pH 7.42 and bicarbonate level 18 mEq/L (18 mmol/L):

This pH is within the normal range, and the bicarbonate level is slightly decreased but not indicative of metabolic acidosis consistent with DKA.

C) Arterial blood pH 7.25 and bicarbonate level 10 mEq/L (10 mmol/L):

Correct. This pH is decreased, indicating acidosis, and the bicarbonate level is significantly below the normal range, consistent with metabolic acidosis characteristic of DKA.

D) Arterial blood pH 7.38 and bicarbonate level 29 mEq/L (29 mmol/L):

While the pH is within the normal range, the bicarbonate level is elevated, which is not consistent with metabolic acidosis seen in DKA.

A) Shivering:

Shivering is not a normal inflammatory response to wound healing. It may indicate systemic symptoms such as fever or chills, which could be indicative of infection or other complications.

B) Purulent drainage:

Purulent drainage (pus) is often a sign of infection rather than a normal inflammatory response to wound healing. While some serous or serosanguinous drainage may be expected initially, purulent drainage suggests an abnormal response.

C) Temperature of 102° F (37.8° C):

A temperature of 102° F (37.8° C) is indicative of fever, which can occur in response to infection or inflammation. While fever is part of the inflammatory response, it is not necessarily considered a normal finding in the context of wound healing and may indicate an abnormal response such as infection.

D) Redness and localized heat:

Correct. Redness (erythema) and localized heat are typical signs of the inflammatory phase of wound healing. Inflammation is a normal response to tissue injury and is characterized by increased blood flow to the area, resulting in redness and warmth. These signs indicate that the body's immune response is active and working to repair the injured tissue.