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  #1  
Old 10-08-2012
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Arrow Billy Step 1 Questions # 15

A 36-year-old man is the owner of a radiator repair shop, where he works cleaning, cutting, polishing, and welding
metals. The shop is poorly ventilated. Over several months, he develops worsening malaise with headache and abdominal
pains and has difficulty holding his tools. CBC indicates microcytic anemia, and basophilic stippling of RBCs is seen on the
peripheral blood smear. An elevated blood level of which of the following would be most useful in determining the toxic exposure causing this illness?


□ (A) Alanine aminotransferase
□ (B) Creatine kinase
□ (C) Zinc protoporphyrin
□ (D) Sodium
□ (E) Calcium
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Old 10-08-2012
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□ (C) Zinc protoporphyrin
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Old 10-08-2012
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Quote:
Originally Posted by billy View Post
A 36-year-old man is the owner of a radiator repair shop, where he works cleaning, cutting, polishing, and welding
metals. The shop is poorly ventilated. Over several months, he develops worsening malaise with headache and abdominal
pains and has difficulty holding his tools. CBC indicates microcytic anemia, and basophilic stippling of RBCs is seen on the
peripheral blood smear. An elevated blood level of which of the following would be most useful in determining the toxic exposure causing this illness?


□ (A) Alanine aminotransferase
□ (B) Creatine kinase
□ (C) Zinc protoporphyrin
□ (D) Sodium
□ (E) Calcium
(C) Zinc protoporphyrin
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Old 10-08-2012
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Quote:
Originally Posted by billy View Post
A 36-year-old man is the owner of a radiator repair shop, where he works cleaning, cutting, polishing, and welding
metals. The shop is poorly ventilated. Over several months, he develops worsening malaise with headache and abdominal
pains and has difficulty holding his tools. CBC indicates microcytic anemia, and basophilic stippling of RBCs is seen on the
peripheral blood smear. An elevated blood level of which of the following would be most useful in determining the toxic exposure causing this illness?


□ (A) Alanine aminotransferase
□ (B) Creatine kinase
□ (C) Zinc protoporphyrin
□ (D) Sodium
□ (E) Calcium
C) Zinc Protoporphyrin
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  #5  
Old 10-08-2012
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Default my answer :)

C) Zinc protoporphyrin - lead poisoning
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  #6  
Old 10-08-2012
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Quote:
Originally Posted by billy View Post
A 36-year-old man is the owner of a radiator repair shop, where he works cleaning, cutting, polishing, and welding
metals. The shop is poorly ventilated. Over several months, he develops worsening malaise with headache and abdominal
pains and has difficulty holding his tools. CBC indicates microcytic anemia, and basophilic stippling of RBCs is seen on the
peripheral blood smear. An elevated blood level of which of the following would be most useful in determining the toxic exposure causing this illness?


□ (A) Alanine aminotransferase
□ (B) Creatine kinase
□ (C) Zinc protoporphyrin
□ (D) Sodium
□ (E) Calcium

My answer is C
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  #7  
Old 10-08-2012
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Lead poisoning- (C) Zinc protoporphyrin
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  #8  
Old 10-09-2012
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Correct Answer

Yes It is correct
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  #9  
Old 10-09-2012
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zinc protoporphyrin coz Pb INHIBITS FERROCHELATASE
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