Unit Code 83817:
Calcium Sensing Receptor (CASR) Gene Mutation Screening, Biochemical and Genetic
Useful For 
Suggests clinical disorders or settings where the test may be helpful
Confirming or ruling out a suspected diagnosis of FHH
As part of the workup of some patients with PHT
Confirming or ruling out a suspected diagnosis of NSPHT
Confirming or ruling out a suspected diagnosis of ADH
As part of the workup of idiopathic hypoparathyroidism
As part of the workup of patients with Bartter's syndrome
Profile Information A profile is a group of laboratory tests that are ordered and performed together under a single Unit Code. Profile information lists tests performed, inclusive of the test fee, when a profile is ordered and includes reporting names and individual availability.
| Unit Code | Reporting Name | Available Separately | Always Performed |
| 83703 | CASR Mutation Screen | Yes | Yes |
| 23341 | Calcium, U | No | Yes |
| 23362 | Creatinine, U | No | Yes |
| 23372 | Calcium/Creatinine Ratio, U | No | Yes |
| 82999 | Parathyroid Hormone (PTH), S | Yes | Yes |
| 8432 | Calcium, Total, S | Yes | Yes |
| 8408 | Phosphorus (Inorganic), S | Yes | Yes |
| 28266 | Creatinine, S | Yes (order #8472) | Yes |
Special Instructions and Forms Describes specimen collection and preparation information, test algorithms, and other information pertinent to test. Also includes pertinent information and consent forms to be used when requesting a particular test
| • | Calcium Sensing Receptor (CASR) Mutation Screening Patient Information Sheet |
| • | Metals Analysis - Collection and Transport |
| • | Informed Consent for DNA Testing |
Method Name A short description of the method used to perform the test
8408: Photometric, Ammonium Molybdate
8432: Photometric, O-Cresolphthalein
23362, 28266: Enzymatic Colorimetic Assay
23341: Inductively Coupled Plasma-Atomic Emmission Spectroscopy
(ICP-AES)
82999: Electrochemiluminescence
83703: Polymerase Chain Reaction (PCR) Amplification/DNA
Sequencing
(PCR is utilized pursuant to a license agreement with Roche
Molecular Systems, Inc.)
Reporting Name A shorter/abbreviated version of the Published Name for a test; an abbreviated test name
CASR Mut Scr, Biochem and Genetic
Ordering Mnemonic An alternate Mayo code (to the Unit Code) for a test
CSRBG
Aliases Lists additional common names for a test, as an aid in searching
Calcium Sensing Receptor, Profile
CASR Profile
Soft-CSRBG
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