A nurse on an acute medical unit of a hospital has admitted a 62 year old female from the emergency department who has been diagnosed with acute pyelonephritis. Which of the following statements most accurately conveys an aspect of the knowledge base that the nurse needs to perform adequate care and teaching?
Imaging tests are likely to reveal scarring and deformation of the renal calices and pelvis
Most cases of acute pyelonephritis are attributable to poorly controlled hypertension
Flank pain, dysuria and nausea and vomiting are likely assessment findings
The infection in the kidney is most likely a manifestation of a systemic infection
The Correct Answer is C
A. Imaging tests are likely to reveal scarring and deformation of the renal calices and pelvis: These findings are more typical of chronic pyelonephritis, which results from repeated or persistent kidney infections. Acute pyelonephritis usually presents with more subtle imaging changes.
B. Most cases of acute pyelonephritis are attributable to poorly controlled hypertension: While hypertension can complicate kidney disease, it is not a common cause of acute pyelonephritis. Most cases are due to ascending urinary tract infections, particularly from organisms like E. coli.
C. Flank pain, dysuria and nausea and vomiting are likely assessment findings: These are hallmark symptoms of acute pyelonephritis. Flank pain results from inflammation of the renal capsule, while dysuria and systemic symptoms like nausea, vomiting, and fever indicate infection.
D. The infection in the kidney is most likely a manifestation of a systemic infection: Acute pyelonephritis is typically caused by local ascending infections from the lower urinary tract, not systemic bacteremia. Though it can lead to systemic illness if not treated, its origin is usually localized.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. Urine output <30mL/hour: Oliguria is defined as a markedly reduced urine output, typically less than 400 mL per day or less than 30 mL per hour. It indicates decreased kidney function or perfusion and is common in progressive renal conditions.
B. Absence of urine output: This describes anuria, not oliguria. Anuria is defined as urine output less than 100 mL per day and signifies severe kidney failure or complete urinary tract obstruction.
C. Increased urine output: This describes polyuria, often associated with conditions like uncontrolled diabetes mellitus or diabetes insipidus, not oliguria.
D. Urine output >100mL/hour: This is well above the threshold for oliguria and may suggest diuresis or overhydration. It does not meet the criteria for decreased kidney output.
Correct Answer is ["A","B","C","E"]
Explanation
A. Blood glucose levels in DKA are typically higher than in HHS: In fact, HHS usually presents with higher blood glucose levels than DKA—often exceeding 600 mg/dL, while DKA typically ranges from 250 to 600 mg/dL.
B. DKA involves significant ketosis and metabolic acidosis, while HHS typically does not: DKA is characterized by the breakdown of fats into ketones, leading to metabolic acidosis. HHS typically lacks significant ketosis because insulin levels, while low, are still sufficient to suppress ketogenesis.
C. DKA is more common in type 1 diabetes, while HHS is more common in type 2 diabetes: DKA usually occurs in individuals with type 1 diabetes due to absolute insulin deficiency. HHS is more often seen in type 2 diabetics who still produce some insulin but not enough to prevent severe hyperglycemia and dehydration.
D. None of the above: This choice is incorrect, as B, C, and E are valid differences between DKA and HHS.
E. HHS patients often have more severe dehydration than DKA patients: HHS leads to profound osmotic diuresis over a longer period, causing extreme dehydration. DKA progresses faster but with less total fluid loss compared to HHS.
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