The quizzes about Urine Screening for Metabolic Disorders (30 tests)

All states require newborn screening for PKU for early:

Modifications of diet

Administration of antibiotics

Detection of diabetes

Initiation of gene therapy

All of the following disorders can be detected by newborn screening except:

Tyrosyluria

MSUD

Melanuria

Galactosemia

The best specimen for early newborn screening is a:

Timed urine specimen

Blood specimen

First morining urine specimen

Fecal specimen

Abnormal urine screening tests categorized as an overflow disorder include all of the following except:

Alkaptonuria

Galactosemia

Melanuria

Cystinuria

Which of the following disorders is not associated with the phenylalanine-tyrosine pathway?

MSUD

Alkaptonuria

Albinism

Tyrosinemia

Urine screening tests for PKU utilize:

Microbial inhibition

Nitroso-napthol

Dinitrophenylhydrazine

Ferric chloride

The least serious form of tyrosylemia is:

Immature liver function

Type 1

Type 2

Type 3

An overflow disorder of the phenylalanine-tyrosine pathway that could produce a false-positive reaction with the reagent strip test for ketones is:

Alkaptonuria

Melanuria

MSUD

Tyrosyluria

An overflow disorder that could produce a falsepositive reaction with clinitest is:

Cystinuria

Alkaptonuria

Indicanuria

Porphyrinuria

A urine that turns black after sitting by the sink for several hours could be indicative of:

Alkaptonuria

MSUD

Melanuria

Both A and C

Ketonuria in a newborn is an indication of:

MSUD

Isovaleric acidemia

Methylmalonic acidemia

All of the above

Urine from a newborn with MSUD will have a significant:

Pale color

Yellow precipitate

Milky appearance

Sweet odor

A substance that reacts with p-nitroaniline is:

Isovaleric acid

Propionic acid

Methylmalonic acid

Indican

Which of the following has a significant odor?

Isovaleric acidemia

Sweet odor Propionic acidemia

Methylmalonic acidemia

Indicanuria

Hartnup disease is a disorder associated with the metabolism of:

Organic acids

Tryptophan

Cystine

Phenylalanine

5-HIAA is a degradation product of:

Heme

Indole

Serotonin

Melanin

Elevated urinary levels of 5-HIAA are associated with:

Carcinoid tumors

Hartnup disease

Cystinuria

Platelet disorders

False-positive levels of 5-HIAA can be caused by a diet high in:

Meat

Carbohydrates

Starch

Bananas

Urine from patients with cystine disorders will react with:

Dinitrophenylhydrazine

Sodium cyanide

Ehrlich reagent

1-Nitroso-napthol

Blue diaper syndrome is associated with:

Lesch-Nyhan syndrome

Phenylketonuria

Cystinuria

Hartnup disease

Homocystinuria is caused by failure to metabolize:

Lysine

Methionine

Arginine

Cystine

Early detection is most valuable for correction of:

Homocystinuria

Cystinuria

Indicanuria

Porphyrinuria

The Ehrlich reaction will only detect the presence of:

Aminolevulinic acid

Porphobilinogen

Coproporphyrin

Protoporphyrin

Acetylacetone is added to the urine prior to performing the Ehrlich test when checking for:

Aminolevulinic acid

Porphobilinogen

Uroporphyrin

Coproporphyrin

The classic urine color associated with porphyria is:

Dark yellow

Indigo blue

Pink

Port wine

Which of the following specimens can be used for porphyrin testing?

Urine

Blood

Feces

All of the above

The two stages of heme formation affected by lead poisoning are:

Porphobilinogen and uroporphyrin

Aminolevulinic acid and porphobilinogen

Coproporphyrin and protoporphyrin

Aminolevulinic acid and protoporphyrin

Hurler, Hunter, and Sanfilippo syndromes are hereditary disorders affecting metabolism of:

Porphyrins

Purines

Mucopolysaccharides

Tryptophan

Many uric acid crystals in a pediatric urine specimen may indicate:

Hurler syndrome

Lesch-Nyhan disease

Melituria

Sanfilippo syndrome

Deficiency of the GALT enzyme will produce a:

Positive Clinitest

Glycosuria

Galactosemia

Both A and C

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The quizzes about Urine Screening for Metabolic Disorders (30 tests)

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All states require newborn screening for PKU for early:

All of the following disorders can be detected by newborn screening except:

The best specimen for early newborn screening is a:

Abnormal urine screening tests categorized as an overflow disorder include all of the following except:

Which of the following disorders is not associated with the phenylalanine-tyrosine pathway?

Urine screening tests for PKU utilize:

The least serious form of tyrosylemia is:

An overflow disorder of the phenylalanine-tyrosine pathway that could produce a false-positive reaction with the reagent strip test for ketones is:

An overflow disorder that could produce a falsepositive reaction with clinitest is:

A urine that turns black after sitting by the sink for several hours could be indicative of:

Ketonuria in a newborn is an indication of:

Urine from a newborn with MSUD will have a significant:

A substance that reacts with p-nitroaniline is:

Which of the following has a significant odor?

Hartnup disease is a disorder associated with the metabolism of:

5-HIAA is a degradation product of:

Elevated urinary levels of 5-HIAA are associated with:

False-positive levels of 5-HIAA can be caused by a diet high in:

Urine from patients with cystine disorders will react with:

Blue diaper syndrome is associated with:

Homocystinuria is caused by failure to metabolize:

Early detection is most valuable for correction of:

The Ehrlich reaction will only detect the presence of:

Acetylacetone is added to the urine prior to performing the Ehrlich test when checking for:

The classic urine color associated with porphyria is:

Which of the following specimens can be used for porphyrin testing?

The two stages of heme formation affected by lead poisoning are:

Hurler, Hunter, and Sanfilippo syndromes are hereditary disorders affecting metabolism of:

Many uric acid crystals in a pediatric urine specimen may indicate:

Deficiency of the GALT enzyme will produce a:

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