What is a manifestation of type 1 diabetes?

Choice A reason: Vasodilation in acute inflammation, triggered by mediators like histamine, increases blood flow to the affected area, delivering more oxygenated blood. This causes erythema (redness), a hallmark of inflammation, as hemoglobin concentration rises in tissues, making this the correct choice.

Choice B reason: Loss of function in inflammation results from tissue damage or swelling impairing normal activity, not directly from vasodilation. Vasodilation contributes to redness and warmth, not functional loss, making this choice incorrect for vasodilation’s effect.

Choice C reason: Pain in inflammation is caused by mediators like bradykinin and prostaglandins sensitizing nociceptors, not directly by vasodilation. While vasodilation supports inflammation, it does not directly cause pain, making this choice incorrect for the manifestation.

Choice D reason: Swelling (edema) in inflammation results from increased capillary permeability, allowing fluid leakage into tissues. Vasodilation increases blood flow but does not directly cause fluid extravasation, making this choice incorrect for vasodilation’s specific effect.

Choice A reason: Prolonged nasogastric suctioning removes gastric acid (HCl), reducing hydrogen ions in the blood, leading to metabolic alkalosis. This is reflected by elevated pH (7.50) and increased HCO3 (28 mEq/L), with normal PaCO2 as the lungs have not yet compensated. This matches the expected acid-base imbalance, making it correct.

Choice B reason: This result shows a slightly acidic pH (7.34) with normal PaCO2 and low HCO3, suggesting metabolic acidosis. Nasogastric suctioning causes loss of acid, not base, so it does not lead to acidosis. This imbalance is inconsistent with the alkalosis expected from gastric acid loss, making it incorrect.

Choice C reason: This result indicates a low pH (7.32) and elevated PaCO2, suggesting respiratory acidosis with partial compensation (normal HCO3). Nasogastric suctioning affects gastric acid, causing metabolic, not respiratory, alkalosis. The respiratory parameters here do not align with the condition’s pathophysiology, making this choice incorrect.

Choice D reason: This result shows an elevated pH (7.46) and low PaCO2, indicating respiratory alkalosis, likely from hyperventilation, with normal HCO3. Nasogastric suctioning causes metabolic alkalosis due to acid loss, not respiratory changes. The low PaCO2 does not fit the expected metabolic profile, making this choice incorrect.