Initial screening for PKU performed on Increased serum phenylalanine can be detected earlier newborns before their discharge from the hospital uses a blood sample rather than a urine sample because: A routine urinalysis is performed on a specimen Melanuria that has turned dark after standing in the laboratory. The urine is acidic and has negative chemical tests except for the appearance of a red color on the ketone area of the reagent strip. One should suspect: A positive Guthrie test is interpreted by Bacterial growth occurs around the positive control disc and observing: the patient disc Patients who have unusually fair complexions Tyrosine is not available for conversion to melanin can be indicative for phenylketonuria because: A reaction for urinary ketones Melanuria could be present in patients who have: A positive urine Clinitest reaction can be seen A. Alkaptonuria in patients with: Confirmation of maple syrup urine disease is MS/MS made on the basis of: A disease that causes amounts of Maple syrup urine disease branched-chain amino acids to be excreted in the urine is: Urine with the characteristic odor of Isovaleric acidemia “sweaty feet” and a positive ketone test indicates: Which of the following foods contains Pineapples serotonin, which can interfere with 5-HIAA testing? The presence of maple syrup urine disease is Odor first suspected by the presence of abnormal urine: The finding of a diaper” is indicative of a Tryptophan “blue defect in the metabolism of: Patients who produce kidney stones at an Cystinuria age should be tested for the presence of: Porphyrins are intermediary compounds in the Heme formation of: The specimen of choice when testing for Blood protoporphyrin is: The most common cause of acquired porphyria Lead poisoning is: A. Fanconi syndrome A B. Neurologic C. Psychiatric D. Photosensitivity The presence of porphobilinogen in the urine Acidic urine turns a port wine color after standing can be suspected when: Urine from a child suspected of having lead Consistent with lead poisoning because coproporphyrin poisoning has a red fluorescence under Wood’s fluoresces under ultraviolet light lamp. This finding is: The concept of vampires is associated with: Porphyrias Characteristic urine odors are associated with A all of the following disorders except: A. Alkaptonuria B. PKU
Initial screening for PKU performed on newborns before their discharge from the hospital uses a blood sample rather than a urine sample because: Increased serum phenylalanine can be detected earlier A routine urinalysis is performed on a specimen that has turned dark after standing in the laboratory. The urine is acidic and has negative chemical tests except for the appearance of a red color on the ketone area of the reagent strip. One should suspect: Melanuria A positive Guthrie test is interpreted by observing: Bacterial growth occurs around the positive control disc and the patient disc Patients who have unusually fair complexions can be indicative for phenylketonuria because: Tyrosine is not available for conversion to melanin A reaction for urinary ketones could be present in patients who have: Melanuria A positive urine Clinitest reaction can be seen in patients with: A. Alkaptonuria Confirmation of maple syrup urine disease is made on the basis of: MS/MS A disease that causes amounts of branched-chain amino acids to be excreted in the urine is: Maple syrup urine disease Urine with the characteristic odor of “sweaty feet” and a positive ketone test indicates: Isovaleric acidemia Which of the following foods contains serotonin, which can interfere with 5-HIAA testing? Pineapples The presence of maple syrup urine disease is first suspected by the presence of abnormal urine: Odor The finding of a “blue diaper” is indicative of a defect in the metabolism of: Tryptophan Patients who produce kidney stones at an age should be tested for the presence of: Cystinuria Porphyrins are intermediary compounds in the formation of: Heme The specimen of choice when testing for protoporphyrin is: Blood The most common cause of acquired porphyria is: Lead poisoning A. Fanconi syndrome B. Neurologic C. Psychiatric D. Photosensitivity A The presence of porphobilinogen in the urine can be suspected when: Acidic urine turns a port wine color after standing Urine from a child suspected of having lead poisoning has a red fluorescence under Wood’s lamp. This finding is: Consistent with lead poisoning because coproporphyrin fluoresces under ultraviolet light The concept of vampires is associated with: Porphyrias Characteristic urine odors are associated with all of the following disorders except: A. Alkaptonuria B. PKU A
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