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Chemical Examination of Urine

Clinical Laboratory Science

A comprehensive overview of chemical urine analysis tests, including methods for detecting proteins, sugars, ketones, bilirubin, and urobilinogen, as well as the impact of ascorbic acid interference.

Urinalysis Chemistry Diagnostics
20 Questions Hard Ages 18+ Aug 30, 2026
Practice Test PDF Answer Key PDF

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About this Study Set

This study set covers Clinical Laboratory Science through 20 practice questions. A comprehensive overview of chemical urine analysis tests, including methods for detecting proteins, sugars, ketones, bilirubin, and urobilinogen, as well as the impact of ascorbic acid interference. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

Questions & Answers

Browse all 20 questions from the Chemical Examination of Urine study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 How are results for most chemical urine tests reported?
  • A Quantitatively
  • B Qualitatively
  • C By weight
  • D By volume
2 Which substance is known to cause false-negative results in several reagent strip parameters?
  • A Glucose
  • B Creatinine
  • C Ascorbic acid
  • D Bilirubin
3 What is the clinical range for microalbuminuria?
  • A < 10 mg/L
  • B 20 to 200 mg/L
  • C > 500 mg/L
  • D 0 to 5 mg/L
4 Which test is used for the confirmatory detection of bilirubin?
  • A Clinitest
  • B Ictotest
  • C Hoesch test
  • D Watson-Schwartz test
5 What is the principle of the Clinitest?
  • A Diazo reaction
  • B Reduction of copper sulfate
  • C Immunochromatography
  • D Enzyme immunoassay
6 What does the 'pass-through phenomenon' in a Clinitest indicate?
  • A Low sugar concentration
  • B High sugar concentration
  • C Absence of sugar
  • D Expired reagent
7 Which test differentiates urobilinogen from porphobilinogen?
  • A Acetest
  • B Hoesch test
  • C Watson-Schwartz test
  • D Micral test
8 What substance is used to detect fructose in urine?
  • A Seliwanoff’s Reagent
  • B Lead Acetate
  • C Sodium Nitroprusside
  • D Diazo Salt
9 Which test is used to detect lactose in urine?
  • A Rubner’s Test
  • B Mucic Acid Test
  • C Clinitest
  • D Ictotest
10 What is the primary purpose of the Acetest?
  • A Detecting glucose
  • B Detecting ketones
  • C Detecting protein
  • D Detecting blood
11 In the Micral test, what does a darker top band indicate?
  • A Negative
  • B Borderline
  • C Positive
  • D Invalid
12 Which enzyme deficiency is associated with Hereditary Fructose Intolerance?
  • A Galactokinase
  • B Aldolase B
  • C Lactase
  • D GALT
13 What is the detection limit of the Hoesch test for porphobilinogen?
  • A 0.05 mg/dL
  • B 0.2 mg/dL
  • C 2 mg/dL
  • D 10 mg/dL
14 What does the Prussian Blue stain detect in urine?
  • A Myoglobin
  • B Hemoglobin
  • C Hemosiderin
  • D Albumin
15 Which reagent strip parameter reacts with Diazo salt?
  • A Glucose
  • B Nitrite
  • C Blood
  • D Ketones
16 What is the normal range for urobilinogen in mg/dL?
  • A 0.2 to 1.0
  • B 1.0 to 2.0
  • C 0 to 0.1
  • D 5.0 to 10.0
17 What is the principle of the ImmunoDip test?
  • A Reduction
  • B Immunochromatography
  • C Oxidation
  • D Precipitation
18 Which test uses lead acetate and ammonium hydroxide?
  • A Rubner’s Test
  • B Hoesch Test
  • C Ictotest
  • D SSA Test
19 What is the result of 'trace' reported as in chemical tests?
  • A Positive
  • B Negative
  • C +/-
  • D 1+
20 Which condition can cause false-positive results for ketones?
  • A Ascorbic acid
  • B Free sulfhydryl drugs
  • C Galactosemia
  • D Lactase deficiency
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