Sorted By Test Name - Mayo Medical Laboratories

CDRU
60156
CAFF
8754
years) is the typical presentation. Breathing the fumes of cadmium vapors leads to nasal epithelial
deterioration and pulmonary congestion resembling chronic emphysema. The most common source of
chronic exposure comes from spray painting of organic-based paints without use of a protective breathing
apparatus; auto repair mechanics represent a susceptible group for cadmium toxicity. In addition, another
common source of cadmium exposure is tobacco smoke.
Useful For: Detecting exposure to cadmium, a toxic heavy metal
Interpretation: Normal blood cadmium is or =16 years: 0.0-1.3 mcg/L
Clinical References: 1. deBurbure C, Buchet J-P, Leroyer A, et al: Renal and Neurologic Effects of
Cadmium, Lead, Mercury, and Arsenic in Children: Evidence of Early Effects and Multiple Interactions at
Environmental Exposure Levels. Environ Health Perspect 2006;114:584-590 2. Schulz C, Angerer J,
Ewers U, et al: Revised and new reference values for environmental pollutants in urine or blood of
children in Germany derived from the German Environmental Survey on Children 2003-2006(GerESIV).
Int J Hyg Environ Health 2009;212:637-647 3. Occupational Safety and Health Administration, US
Department of Labor: Cadmium Exposure Evaluation. Updated 9/2/2008. Available from URL:
osha.gov/SLTC/cadmium/evaluation.html
Caffeine, Serum
Clinical Information: Caffeine is used to treat apnea that occurs in newborn infants, the most
frequent complication seen in the neonatal nursery. Caffeine is administered orally (nasogastric tube) as a
loading dose of 3 mg/kg followed by a maintenance dose of 1 mg/kg administered once every 24 to 48
hours, depending on the patient's response and the serum level. In neonates, caffeine has a half-life that
ranges from 20 to 100 hours, which is much longer than in adults (typically 4-6 hours) due to the
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