URINALYSIS AND BODY FLUIDS UPDATED
EXAMS SET COMPLETE QUESTIONS AND
ANSWERS
●● What is the CLSI definition of urinalysis?
Answer: The testing of urine with procedures commonly performed in
an expeditious, reliable, safe, and cost-effective manner.
●● What is the average daily urine output for a healthy adult?
Answer: 1200 mL.
●● What is the primary organic solute found in urine?
Answer: Urea, which is a product of protein and amino acid breakdown.
●● What factors influence urine volume?
Answer: Fluid intake, body hydration state, nonrenal fluid loss, and
variations in antidiuretic hormone (ADH).
●● What is oliguria?
Answer: A decrease in urine output, defined as less than 1 mL/kg/h in
infants, less than 0.5 mL/kg/h in children, and less than 400 mL/day in
adults.
, ●● What is polyuria?
Answer: An increase in urine output, defined as more than 2.5 L/day in
adults and more than 2.5 to 3 mL/kg/day in children.
●● What distinguishes diabetes mellitus from diabetes insipidus in terms
of urine production?
Answer: Diabetes mellitus causes increased urine volume due to excess
glucose excretion, while diabetes insipidus results from decreased ADH
leading to dilute urine.
●● What are the recommended practices for urine specimen collection?
Answer: Wear gloves, use clean, dry, leak-proof containers, and collect
at least 12 mL for analysis.
●● What information should be included on a specimen label?
Answer: Patient's name, ID number, date, time, and additional
information like age and health-care provider's name.
●● What are common reasons for specimen rejection?
Answer: Unlabeled containers, nonmatching labels and requisition
forms, contamination, insufficient quantity, and improper transport.
●● What is the ideal temperature for urine specimen preservation?
EXAMS SET COMPLETE QUESTIONS AND
ANSWERS
●● What is the CLSI definition of urinalysis?
Answer: The testing of urine with procedures commonly performed in
an expeditious, reliable, safe, and cost-effective manner.
●● What is the average daily urine output for a healthy adult?
Answer: 1200 mL.
●● What is the primary organic solute found in urine?
Answer: Urea, which is a product of protein and amino acid breakdown.
●● What factors influence urine volume?
Answer: Fluid intake, body hydration state, nonrenal fluid loss, and
variations in antidiuretic hormone (ADH).
●● What is oliguria?
Answer: A decrease in urine output, defined as less than 1 mL/kg/h in
infants, less than 0.5 mL/kg/h in children, and less than 400 mL/day in
adults.
, ●● What is polyuria?
Answer: An increase in urine output, defined as more than 2.5 L/day in
adults and more than 2.5 to 3 mL/kg/day in children.
●● What distinguishes diabetes mellitus from diabetes insipidus in terms
of urine production?
Answer: Diabetes mellitus causes increased urine volume due to excess
glucose excretion, while diabetes insipidus results from decreased ADH
leading to dilute urine.
●● What are the recommended practices for urine specimen collection?
Answer: Wear gloves, use clean, dry, leak-proof containers, and collect
at least 12 mL for analysis.
●● What information should be included on a specimen label?
Answer: Patient's name, ID number, date, time, and additional
information like age and health-care provider's name.
●● What are common reasons for specimen rejection?
Answer: Unlabeled containers, nonmatching labels and requisition
forms, contamination, insufficient quantity, and improper transport.
●● What is the ideal temperature for urine specimen preservation?
