Which lab values would you expect to see when a patient with type 1 diabetes presents in ketoacidosis?
Increased serum bicarbonate
Decreased serum potassium
Urine pH 4.0 (expected range 4.5 to 8)
Serum pH of 7.5 (expected range 7.35 to 7.45)
The Correct Answer is C
A. In diabetic ketoacidosis (DKA), serum bicarbonate is typically decreased, not increased. The decrease is due to metabolic acidosis resulting from the accumulation of ketones.
B. Serum potassium is often elevated in DKA initially due to the shift of potassium from inside the cells to the bloodstream as a result of acidosis. However, potassium levels may drop with treatment, especially with insulin administration, which drives potassium back into cells.
C. Urine pH in DKA is often acidic due to the presence of ketones, which are acidic byproducts of fat metabolism. A urine pH of 4.0 indicates aciduria, which is consistent with ketoacidosis.
D. Serum pH in DKA is typically low (below 7.35), indicating acidosis. A serum pH of 7.5 would suggest alkalosis, which is not typical of DKA.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. While Crohn disease can affect any part of the gastrointestinal tract, it often affects the small intestine, particularly the ileum. However, the location alone does not explain the increased risk of obstruction.
B. Certain foods, such as spicy foods, may exacerbate symptoms of Crohn disease, but this is not the primary reason it causes intestinal obstruction.
C. Crohn disease causes inflammation that can lead to the formation of granulomas, particularly in the submucosal layers. These granulomas contribute to fibrosis and narrowing of the bowel, which can lead to intestinal obstruction. This is a key feature of Crohn disease that makes it more likely to cause obstruction compared to ulcerative colitis.
D. Abdominal pain and watery diarrhea are common symptoms of both Crohn disease and ulcerative colitis, but they are not directly related to the increased risk of obstruction in Crohn disease.
Correct Answer is A
Explanation
A. Atherosclerosis, the buildup of fatty plaques in the arteries, is a common cause of death in patients with progeria. These patients experience accelerated aging, which leads to early development of cardiovascular diseases, including atherosclerosis, which contributes to their early mortality.
B. Psychosis is not typically associated with progeria. The condition primarily affects physical aging processes rather than causing psychiatric symptoms like psychosis.
C. While rapid aging is the hallmark of progeria, it is not the direct cause of death. Instead, it leads to the development of age-related diseases like cardiovascular issues, which are the main contributors to mortality.
D. Scleroderma is a condition involving the hardening of the skin and connective tissues, but it is not a direct cause of death in progeria. The primary cause of death is related to cardiovascular complications such as atherosclerosis.
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