A nurse working in an emergency department is reviewing laboratory results of a client who is unconscious and has fruity odor to his breath. The nurse suspects diabetic ketoacidosis. Which of the following results should the nurse expect for this acid-base imbalance?
Bicarbonate 26 mEq/L
Serum pH 7.32
Creatinine 1.2 mg/dL
BUN 20 mg/dL
The Correct Answer is B
A) Bicarbonate 26 mEq/L: A bicarbonate level of 26 mEq/L is within the normal range (22-28 mEq/L) and does not indicate metabolic acidosis, which is characteristic of diabetic ketoacidosis (DKA). In DKA, bicarbonate levels are usually decreased due to buffering of the excess acids.
B) Serum pH 7.32: A serum pH of 7.32 is indicative of acidemia, which is consistent with metabolic acidosis seen in DKA. The pH is typically lower than the normal range (7.35-7.45) in DKA due to the accumulation of ketoacids.
C) Creatinine 1.2 mg/dL: A creatinine level of 1.2 mg/dL is slightly elevated but does not specifically indicate metabolic acidosis. Elevated creatinine may suggest renal impairment but is not directly linked to the acid-base disturbance seen in DKA.
D) BUN 20 mg/dL: A blood urea nitrogen (BUN) level of 20 mg/dL is elevated and may indicate dehydration or kidney dysfunction but does not specifically diagnose the acid-base imbalance associated with DKA. In DKA, bicarbonate and pH levels are more directly affected.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A) Drink 8 oz of milk when hypoglycemia develops:
While consuming a fast-acting carbohydrate is important during hypoglycemia, 8 oz of milk may not be the most effective choice. Typically, glucose tablets or juice are recommended as they provide a quicker absorption of sugar into the bloodstream.
B) Initiate a 1,400-calorie diet daily:
Caloric needs should be individualized based on the adolescent’s age, weight, activity level, and overall health. A fixed 1,400-calorie diet might not be appropriate for every adolescent and could lead to insufficient energy intake or excessive restriction.
C) Rotate the insulin injection site to a different area of the body with every other injection:
While rotating injection sites is important to prevent lipodystrophy, it is generally recommended to use different sites within the same area (such as different spots on the abdomen) rather than entirely different areas of the body with each injection. This ensures consistent absorption of insulin.
D) Keep unopened insulin refrigerated at 4.44° C (40° F):
Unopened insulin should be stored in the refrigerator to maintain its potency until it is ready to be used. This temperature range ensures the insulin remains stable and effective for use.
Correct Answer is D
Explanation
A) Keep client in semi-Fowler's position with right extremity flat: Keeping the client in a semi-Fowler's position with the extremity flat is not appropriate for managing a compound fracture. Elevating the affected limb, if possible, helps reduce swelling and pain, but the position should also consider overall stability and comfort.
B) Manage pain with oral opioids every 6 hr: Oral opioids are not the best choice for immediate pain management in an emergency setting, especially with a compound fracture. Intravenous pain medications are typically more effective for acute, severe pain in such situations and can provide quicker relief.
C) Check capillary refill hourly for the first 24 hr: Checking capillary refill is important to assess blood flow and perfusion, but hourly checks for 24 hours may not be necessary and can be overly frequent unless specific concerns arise. Monitoring should be based on clinical judgment and the client's condition.
D) Apply a compression dressing over the fracture site: Applying a compression dressing over the fracture site can help control bleeding and stabilize the area. Compound fractures involve an open wound, so controlling bleeding while minimizing the risk of infection is crucial. This intervention is essential in managing the initial trauma before more definitive surgical treatment.
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