Free Practice Quiz Question List

2 Assessment and Laboratory Findings in Acute Kidney Injury Online Quiz Questions

Use this free practice quiz with 20 questions to review 2 Assessment and Laboratory Findings in Acute Kidney Injury, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

A bland urinalysis rules out acute kidney injury.

A
True
B
False

Fill in the blank

1 point

On urine microscopy, and tubular cells may support tubular injury. Name the cast finding.

Choose one

1 point

A patient with suspected AKI may have urinary retention. Which assessment can help identify retention?

A
Urine microscopy
B
Bladder scan or postvoid residual
C
Kidney biopsy
D
Electrocardiogram

True or false

1 point

Urine sodium, urea, and creatinine—or calculated indices such as fractional excretion of sodium—can be interpreted on their own, without considering medications or the patient’s clinical state.

A
True
B
False

Written response

1 point

Which kidney-function estimate is less reliable while serum creatinine is changing rapidly?

Choose one

1 point

After surgery, a patient’s urine output is falling, but the serum creatinine is still near the known baseline. Which interpretation is most appropriate?

A
The unchanged creatinine rules out AKI, so no further assessment is needed.
B
Falling urine output may be an earlier warning; assess measured output and trends.
C
The eGFR is definitive even while creatinine is changing.
D
Any brief period of low urine output establishes a duration-based criterion.

Fill in the blank

1 point

One KDIGO diagnostic criterion for AKI is a serum creatinine rise of at least mg/dL within 48 hours.

Written response

1 point

A patient’s serum creatinine rises to 2.4 times the known baseline within 7 days. No urine-output criterion or other creatinine criterion reaches a higher stage. What KDIGO stage applies?

Choose all

1 point

Which urine findings may suggest glomerular disease? Select all that apply.

A
Red-cell casts
B
Blood in the urine with protein
C
Granular casts with tubular cells
D
A bland urinalysis

Choose all

1 point

Which findings are possible laboratory abnormalities associated with AKI? Select all that apply.

A
Hyperkalemia
B
Metabolic acidosis
C
Phosphate retention
D
Low calcium
E
High calcium as an expected feature of every AKI case
F
Low phosphate as an expected feature of every AKI case

Choose one

1 point

A patient with AKI has a presentation that raises concern for muscle injury. Which investigation approach is supported?

A
Order targeted testing for muscle injury, based on the presentation.
B
Perform kidney biopsy in every patient with AKI.
C
Order urinary-tract ultrasound routinely when the cause is already established.
D
Use a complete blood count alone to confirm muscle injury.

True or false

1 point

“Oliguric” and “nonoliguric” are separate KDIGO stages of AKI.

A
True
B
False

Open ended

1 point

A patient has a single elevated creatinine result, no known baseline, a reported eGFR, and few noticeable symptoms. Explain what additional clinical assessment and monitoring would help evaluate possible AKI, and describe the limitations of interpreting the single creatinine and eGFR results.

Choose one

1 point

A patient has an elevated serum creatinine, but no earlier result is available. Which approach best helps determine whether the patient has an acute change in kidney function?

A
Use the elevated value alone to determine whether the change was acute.
B
Review prior records for a baseline if available and obtain serial creatinine measurements to assess the trend.
C
Rely on eGFR alone while creatinine is changing rapidly.
D
Wait for symptoms to appear before checking further laboratory results.

Choose one

1 point

Urine microscopy is performed during evaluation of acute kidney injury. Which finding may support tubular injury?

A
Granular casts and tubular cells
B
Red-cell casts
C
Blood with protein
D
A bland urinalysis result

Written response

1 point

What is the urine-output cutoff used in the KDIGO AKI diagnostic criterion when urine volume remains below it for 6 hours? Enter the numeric cutoff in mL/kg/hour.

Written response

1 point

Compared with a later rise in serum creatinine, what urine-output trend may provide an earlier warning of acute kidney injury?

Choose one

1 point

A clinician is considering urine sodium and fractional excretion indices to help distinguish causes of AKI. Which interpretation is most appropriate?

A
Interpret urine sodium and calculated indices alone as definitive evidence of a cause.
B
Disregard urine chemistry results whenever the patient takes medication.
C
Use urine chemistries as contextual evidence alongside the clinical picture.
D
Use urine chemistry only to determine AKI stage.

Choose one

1 point

A patient has AKI with no established cause, and urinary obstruction is a possibility. Which investigation is useful to consider?

A
Order ultrasound routinely in every patient with AKI, regardless of the known cause.
B
Consider urinary-tract ultrasound when obstruction is suspected or the cause remains unclear.
C
Use ultrasound to replace serial creatinine and urine-output assessment.
D
Use ultrasound only when urinalysis is bland.

Choose one

1 point

A patient with AKI is suspected of having high serum potassium. Why might the care team check an electrocardiogram?

A
Low calcium is expected in every AKI case, so an ECG confirms the diagnosis.
B
Low sodium directly establishes the AKI stage, so an ECG is unnecessary.
C
A high BUN can affect conduction, so an ECG is required in every case.
D
Suspected hyperkalemia can affect cardiac conduction, so an ECG may be checked.

2 Assessment and Laboratory Findings in Acute Kidney Injury Online Quiz Questions

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