Reference Laboratory

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Reference Laboratory
Tests

51910

Kanamycin Level, BA

Specimens collected just before or within 15 minutes of the next dose represent the TROUGH levels. Specimens obtained within 15-30 minutes after the end of I.V. infusion or 45-60 minutes after an IM injection or 90 minutes after oral intake represent the PEAK level.

This test is available for New York patient testing.

Methodology		Bioassay
Reference Range		By report
Preferred Specimen		1 mL serum (minimum 0.5 mL)
Transport Temperature		FROZEN
Results Available		3 to 4 days
CPT Code		80299

20610

Kappa/Lambda Light Chains Quantitative, NEPH (Serum)

This assay detects both bound and free light chains in serum. In healthy individuals, over 99% of all serum light chains are bound to heavy chains of circulating immunoglobulins (IgG, IgA, IgM). Increased concentrations of both light chain types in conjunction with a normal ratio indicates polyclonal B cell stimulation, and characterizes chronic inflammatory diseases such as chronic active hepatitis. In contrast, an upward or downward shift in ratio caused by increased kappa chains or increased lambda chains, respectively, usually indicates a monoclonal gammopathy. In these situations, an immunoglobulin evaluation is recommended to identify and characterize any associated paraprotein.

For Free Kappa and Lambda Light Chains see unit code 20646.

This test is approved for New York patient testing.

Methodology		Nephelometry
Reference Range		By report
Preferred Specimen		1 mL serum (minimum 0.5 mL)
Transport Temperature		2-8° C
Results Available		1 to 5 days
CPT Code		83883 x 2

51685

Ketoconazole Level, BA

Therapeutic levels:
Peak serum 4.0 mcg/mL

List all other antimicrobials being used to treat the patient.

This test is available for New York patient testing.

Please see the following technical sheet for more information:

Antimicrobial Testing

Methodology		Bioassay
Reference Range		By report
Preferred Specimen		1 mL serum (minimum 0.5 mL) Red Top serum separator tubes not acceptable.
Transport Temperature		FROZEN
Results Available		3 to 4 days
CPT Code		80299

43150

Kappa Light Chain Quantitative, NEPH (Urine)

Both bound and free light chains in urine are detected by nephelometry; bound light chains are still linked to heavy chains of specific immunoglobulins (IgG, IgA, IgM). Approximately 25% of patients with multiple myeloma secrete free light chains only, and another 25% secrete free light chains plus bound light chains. An immunoglobulin evaluation test is recommended to identify and characterize any associated paraprotein.

This test is approved for New York patient testing.

Methodology		Nephelometry
Reference Range		<1.5 mg/dL
Preferred Specimen		5 mL urine (minimum 5 mL)
Transport Temperature		2-8° C
Results Available		1 to 5 days
CPT Code		83883

53150

Kappa/Lambda Light Chain Quantitative, NEPH (Urine)

This test is approved for New York patient testing.

Methodology		Nephelometry
Reference Range		Kappa chains <1.5 mg/dL Lambda chains <2.0 mg/dL
Preferred Specimen		5 mL urine (minimum 5 mL)
Transport Temperature		2-8° C
Results Available		1 to 5 days
CPT Code		83883 x 2

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First FDA Clearance of a 2009 H1N1 Test Given to Focus Diagnostics

FDA Issues Another Emergency Use Authorization for Commercial H1N1 Flu Test to Quest Diagnostics� Focus Diagnostics

Focus Diagnostics provides the first commercial test for detecting the 2009 H1N1 influenza virus that the FDA has authorized for emergency use.

Focus Diagnostics receives NYSDOH exemption for Diagnostic Immunology and Serology testing services

Focus Diagnostics Launches Laboratory Test for Chikungunya Virus

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