The nurse assesses the wound of a client who received sutures for a laceration of the hand two days ago. Which finding is a normal inflammatory response?

A) Sensory neuropathy:

Sensory neuropathy, while common in diabetes mellitus, primarily affects sensation in the extremities and can lead to reduced pain perception and protective sensation. While sensory neuropathy can contribute to the development of foot ulcers by reducing the ability to detect trauma or pressure, it is not the primary factor influencing the ability of the ulcer to heal.

B) Hyperlipidemia:

Hyperlipidemia, characterized by elevated levels of lipids (cholesterol and triglycerides) in the blood, is a common comorbidity in diabetes mellitus. It can contribute to the development of atherosclerosis and macrovascular complications such as coronary artery disease and peripheral arterial disease. While macrovascular disease can impair wound healing by reducing blood flow to the affected area, it is not the primary contributing factor to the ability of the ulcer to heal.

C) Ketoacidosis:

Ketoacidosis, a serious complication of uncontrolled diabetes mellitus, results from the accumulation of ketones in the blood, leading to metabolic acidosis. While ketoacidosis can have systemic effects and impair overall health, it is not directly related to the ability of a foot ulcer to heal.

D) Microvascular changes:

Correct. Microvascular changes, such as thickening of the capillary basement membrane and endothelial dysfunction, are hallmark features of diabetes mellitus. These changes lead to impaired microcirculation, reduced oxygen delivery, and compromised nutrient supply to tissues, including the skin and soft tissues of the foot. Poor microvascular perfusion contributes to delayed wound healing and an increased risk of infection in individuals with diabetes mellitus. Addressing microvascular changes is essential for promoting wound healing in diabetic foot ulcers, making it the primary contributing factor to the ability of the ulcer to heal.

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.