METHYLMALONIC ACID, SERUM

LAB835

 

Collect

Plain red or serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).

Specimen Preparation

Centrifuge and remove serum or plasma from cells within 2 hours of collection. Immediately transfer 2 mL serum or plasma to an ARUP Standard Transport Tube and
refrigerate or freeze. (Min: 1 mL)

Unacceptable Conditions

Room temperature specimens. Grossly hemolyzed or lipemic specimens.

Storage/Transport Temperature

Frozen.

Stability (from collection to initiation)

After separation from cells: Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month

Performed by

UCD Biochemical Genetics Laboratory (For patients <=18 years old)

ARUP (For patients >=19 years old)

Performed

Sun-Sat

Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Reported

1-2 days

Synonyms

  • LAB835

Ordering Recommendations

This test is used to evaluate and monitor methylmalonic acidemia.

Reference Interval

Effective July 18, 2011

0.00-0.40 µmol/L

Performed by

UCD Biochemical Genetics Laboratory (For patients <=18 years old)

ARUP (For patients >=19 years old)

CPT Codes

83921
Collection

LAB835

 

Collect

Plain red or serum separator tube. Also acceptable: Green (sodium or lithium heparin), lavender (EDTA), or pink (K2EDTA).

Specimen Preparation

Centrifuge and remove serum or plasma from cells within 2 hours of collection. Immediately transfer 2 mL serum or plasma to an ARUP Standard Transport Tube and
refrigerate or freeze. (Min: 1 mL)

Unacceptable Conditions

Room temperature specimens. Grossly hemolyzed or lipemic specimens.

Storage/Transport Temperature

Frozen.

Stability (from collection to initiation)

After separation from cells: Ambient: Unacceptable; Refrigerated: 4 days; Frozen: 1 month

Performed by

UCD Biochemical Genetics Laboratory (For patients <=18 years old)

ARUP (For patients >=19 years old)

Ordering

Performed

Sun-Sat

Methodology

Quantitative Liquid Chromatography-Tandem Mass Spectrometry

Reported

1-2 days

Synonyms

  • LAB835

Ordering Recommendations

This test is used to evaluate and monitor methylmalonic acidemia.
Result Interpretation

Reference Interval

Effective July 18, 2011

0.00-0.40 µmol/L

Performed by

UCD Biochemical Genetics Laboratory (For patients <=18 years old)

ARUP (For patients >=19 years old)

Administrative

CPT Codes

83921

MEXILETINE

LAB3095

Collect

Serum Pre-dose (Trough) Draw - At a Steady State Concentration or Plasma Pre-dose (Trough) Draw - At a Steady State Concentration in Plain Red, Lavender (K2EDTA), Lavender (K3EDTA), or Pink (K2EDTA).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Unacceptable Conditions

Whole blood. Gel Separator Tubes, Light Blue (Sodium Citrate), or Yellow (SPS or ACD Solution).

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

Ambient: 48 hours; Refrigerated: 5 days; Frozen: 2 months

Remarks

Please indicate in the supplied fields:
1.  Dose - List drug amount and include the units of measure
2.  Route - List the route of administration (IV, oral, etc.)
3.  Dose Frequency - Indicate how often the dose is administered (per day, per week, as needed, etc.)
4.  Type of Draw - Indicate the type of blood draw (Peak, Trough, Random, etc.)

Performed

Tue, Thu, Sat

Methodology

Quantitative Liquid Chromatography/Tandem Mass Spectrometry

Reported

1-5 days

Synonyms

  • LAB3095
  • Mexitil
  • Mexitil blood level
  • MEXILETINE-A

Ordering Recommendations

Optimize drug therapy and monitor patient adherence.

Reference Interval

Therapeutic Range1.0-2.0 µg/mL
Toxic LevelGreater than 2.0 µg/mL

Interpretive Data

The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. Toxic concentrations may cause hypotension, tremor and cardiac abnormalities.

CPT Codes

80299
Collection

LAB3095

Collect

Serum Pre-dose (Trough) Draw - At a Steady State Concentration or Plasma Pre-dose (Trough) Draw - At a Steady State Concentration in Plain Red, Lavender (K2EDTA), Lavender (K3EDTA), or Pink (K2EDTA).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection. Transfer 1 mL serum or plasma to an ARUP Standard Transport Tube. (Min: 0.5 mL)

Unacceptable Conditions

Whole blood. Gel Separator Tubes, Light Blue (Sodium Citrate), or Yellow (SPS or ACD Solution).

Storage/Transport Temperature

Refrigerated.

Stability (from collection to initiation)

Ambient: 48 hours; Refrigerated: 5 days; Frozen: 2 months

Remarks

Please indicate in the supplied fields:
1.  Dose - List drug amount and include the units of measure
2.  Route - List the route of administration (IV, oral, etc.)
3.  Dose Frequency - Indicate how often the dose is administered (per day, per week, as needed, etc.)
4.  Type of Draw - Indicate the type of blood draw (Peak, Trough, Random, etc.)
Ordering

Performed

Tue, Thu, Sat

Methodology

Quantitative Liquid Chromatography/Tandem Mass Spectrometry

Reported

1-5 days

Synonyms

  • LAB3095
  • Mexitil
  • Mexitil blood level
  • MEXILETINE-A

Ordering Recommendations

Optimize drug therapy and monitor patient adherence.
Result Interpretation

Reference Interval

Therapeutic Range1.0-2.0 µg/mL
Toxic LevelGreater than 2.0 µg/mL

Interpretive Data

The therapeutic range is based on serum pre-dose (trough) draw at steady-state concentration. Toxic concentrations may cause hypotension, tremor and cardiac abnormalities.

Administrative

CPT Codes

80299

Mi-2 ANTIBODIES

LAB3262

 

Collect

3 mL Red Top - Serum .

Unacceptable Conditions

.

Storage/Transport Temperature

Internal: Deliver to lab immediatley
Offsite: 1 mL serum Spin and separate and deliver to lab refrigerated.

Stability (from collection to initiation)

Ambient - 7 days;Refrigerated - 14 days;Frozen - 2 months

Remarks

Separate cells from serum within 4 hours of collection.

Performed by

LABCorp Laboratory Services

Performed

Mon

Methodology

RIPA - Radioimmunoprecipitation Assay.

Reported

In 14 days

Synonyms

  • LAB3262
  • ANTIMI2AB
  • MI2
  • MI

Performed by

LABCorp Laboratory Services

Collection

LAB3262

 

Collect

3 mL Red Top - Serum .

Unacceptable Conditions

.

Storage/Transport Temperature

Internal: Deliver to lab immediatley
Offsite: 1 mL serum Spin and separate and deliver to lab refrigerated.

Stability (from collection to initiation)

Ambient - 7 days;Refrigerated - 14 days;Frozen - 2 months

Remarks

Separate cells from serum within 4 hours of collection.

Performed by

LABCorp Laboratory Services

Ordering

Performed

Mon

Methodology

RIPA - Radioimmunoprecipitation Assay.

Reported

In 14 days

Synonyms

  • LAB3262
  • ANTIMI2AB
  • MI2
  • MI
Result Interpretation

Performed by

LABCorp Laboratory Services

Administrative

MICROALBUMIN 24 HOUR URINE

LAB4854

MA TIMU

Collect

Timed urine collection in plastic container.
Mandatory collection information: Start date and time and End date and time of collection.
 

Pediatric Collection

Timed urine collection in plastic container. Minimum volume 0.2 mL urine.
Mandatory collection information: Start date and time and End date and time of collection.
 

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately.

Offsite: Deliver to lab at 2-8 degrees C.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated: 3 days; Frozen: Unacceptable.

Remarks

Requisition must state date and collection period (start and end time of collection). Indicate total collection volume if submitting an aliquot. Refrigerate during collection.

Performed by

PCL Clinical Laboratory - Core

Performed

Daily

Methodology

Immunoturbidimetry

Reported

Same day

Reference Interval

Microalbumin, Urine  0.0 - 1.8 mg/dL

Microalbumin, 24-hour Urine Excretion  0-20 μg/mi

Interpretive Data

Expected Microalbumin/Creatinine Ratio: less than 30 μg/mg creatinine

Performed by

PCL Clinical Laboratory - Core

CPT Codes

82043 Microalbumin

81050 Volume measurement

Collection

LAB4854

MA TIMU

Collect

Timed urine collection in plastic container.
Mandatory collection information: Start date and time and End date and time of collection.
 

Pediatric Collection

Timed urine collection in plastic container. Minimum volume 0.2 mL urine.
Mandatory collection information: Start date and time and End date and time of collection.
 

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately.

Offsite: Deliver to lab at 2-8 degrees C.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated: 3 days; Frozen: Unacceptable.

Remarks

Requisition must state date and collection period (start and end time of collection). Indicate total collection volume if submitting an aliquot. Refrigerate during collection.

Performed by

PCL Clinical Laboratory - Core

Ordering

Performed

Daily

Methodology

Immunoturbidimetry

Reported

Same day

Result Interpretation

Reference Interval

Microalbumin, Urine  0.0 - 1.8 mg/dL

Microalbumin, 24-hour Urine Excretion  0-20 μg/mi

Interpretive Data

Expected Microalbumin/Creatinine Ratio: less than 30 μg/mg creatinine

Performed by

PCL Clinical Laboratory - Core

Administrative

CPT Codes

82043 Microalbumin

81050 Volume measurement

MICROALBUMIN RANDOM URINE

LAB3286

MA RANU

 

Collect

At least 2 mL urine in a sterile tube, container or syringe.

Pediatric Collection

At least 0.2 mL urine in a sterile tube, container or syringe

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately at ambient temperature.
Offsite: Transport to lab at 2-8 degrees C.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated 3 days; Frozen: unacceptable.

Performed by

PCL Clinical Laboratory - Core

Performed

Daily

Methodology

Immuno-turbidimetry

Reported

Same day

Synonyms

  • LAB3286

Reference Interval

Reference ranges are available for 24-hour urine specimens.

Performed by

PCL Clinical Laboratory - Core

CPT Codes

82043

Collection

LAB3286

MA RANU

 

Collect

At least 2 mL urine in a sterile tube, container or syringe.

Pediatric Collection

At least 0.2 mL urine in a sterile tube, container or syringe

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately at ambient temperature.
Offsite: Transport to lab at 2-8 degrees C.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated 3 days; Frozen: unacceptable.

Performed by

PCL Clinical Laboratory - Core

Ordering

Performed

Daily

Methodology

Immuno-turbidimetry

Reported

Same day

Synonyms

  • LAB3286
Result Interpretation

Reference Interval

Reference ranges are available for 24-hour urine specimens.

Performed by

PCL Clinical Laboratory - Core

Administrative

CPT Codes

82043

MICROALBUMIN TIMED URINE

LAB410

MA TIMU

 

Collect

Timed urine collection in plastic container.
Mandatory collection information: Start date and time and End date and time of collection.
 

Pediatric Collection

Timed urine collection in plastic container. Minimum volume 0.2 mL urine.
Mandatory collection information: Start date and time and End date and time of collection.
 

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Send at 2-8 degrees C.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated: 3 days; Frozen: Unacceptable.

Remarks

Requisition must state date and collection period. Indicate total collection volume if submitting an aliquot. Refrigerate during collection.

Performed by

PCL Clinical Laboratory - Core

Performed

Daily

Methodology

Immuno-turbidimetry

Reported

Same day

Synonyms

  • LAB410

Reference Interval

Reference ranges are available for 24-hour urine specimens.

Performed by

PCL Clinical Laboratory - Core

CPT Codes

82043 Microalbumin

81050 Volume measurement

Collection

LAB410

MA TIMU

 

Collect

Timed urine collection in plastic container.
Mandatory collection information: Start date and time and End date and time of collection.
 

Pediatric Collection

Timed urine collection in plastic container. Minimum volume 0.2 mL urine.
Mandatory collection information: Start date and time and End date and time of collection.
 

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient volume.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Send at 2-8 degrees C.

Stability (from collection to initiation)

Ambient: 4 hours; Refrigerated: 3 days; Frozen: Unacceptable.

Remarks

Requisition must state date and collection period. Indicate total collection volume if submitting an aliquot. Refrigerate during collection.

Performed by

PCL Clinical Laboratory - Core

Ordering

Performed

Daily

Methodology

Immuno-turbidimetry

Reported

Same day

Synonyms

  • LAB410
Result Interpretation

Reference Interval

Reference ranges are available for 24-hour urine specimens.

Performed by

PCL Clinical Laboratory - Core

Administrative

CPT Codes

82043 Microalbumin

81050 Volume measurement

MICROHEMATOCRIT

LAB3727

HCT, SPUN

 

Collect

Two heparinized hematocrit tubes, sealed at one end; One 4 mL Purple top tube (EDTA); or one Microtainer (EDTA).

Pediatric Collection

0.3 mL in Purple top microtainer (EDTA) or two heparinized hematocrit tubes, sealed at one end.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; clotted sample; frozen sample.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Send at 2-8 degrees C if transport time is outside of ambient temp stability guidelines.

Stability (from collection to initiation)

Ambient: 10 hours; Refrigerated: 36 hours; Frozen: Unacceptable.

Performed by

PCL Clinical Laboratory - Core

Performed

Daily

Methodology

Microhematocrit

Reported

Same day

Synonyms

  • LAB3727
  • SPUN HEMATOCRIT
  • HCT, SPUN

Reference Interval

Sex From Age To Age Normal Low Normal High Units
F 18 150 40.0 49.0 %
M 18 150 42.0 54.0 %
M/F 0 4D 45.0 67.0 %
M/F 4D 15D 39.0 66.0 %
M/F 15D 1M 31.0 55.0 %
M/F 1M 7M 28.0 42.0 %
M/F 7M 2 33.0 39.0 %
M/F 2 13 34.0 45.0 %
M/F 13 18 37.0 49.0 %

Performed by

PCL Clinical Laboratory - Core

CPT Codes

85013

Collection

LAB3727

HCT, SPUN

 

Collect

Two heparinized hematocrit tubes, sealed at one end; One 4 mL Purple top tube (EDTA); or one Microtainer (EDTA).

Pediatric Collection

0.3 mL in Purple top microtainer (EDTA) or two heparinized hematocrit tubes, sealed at one end.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; clotted sample; frozen sample.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Send at 2-8 degrees C if transport time is outside of ambient temp stability guidelines.

Stability (from collection to initiation)

Ambient: 10 hours; Refrigerated: 36 hours; Frozen: Unacceptable.

Performed by

PCL Clinical Laboratory - Core

Ordering

Performed

Daily

Methodology

Microhematocrit

Reported

Same day

Synonyms

  • LAB3727
  • SPUN HEMATOCRIT
  • HCT, SPUN
Result Interpretation

Reference Interval

Sex From Age To Age Normal Low Normal High Units
F 18 150 40.0 49.0 %
M 18 150 42.0 54.0 %
M/F 0 4D 45.0 67.0 %
M/F 4D 15D 39.0 66.0 %
M/F 15D 1M 31.0 55.0 %
M/F 1M 7M 28.0 42.0 %
M/F 7M 2 33.0 39.0 %
M/F 2 13 34.0 45.0 %
M/F 13 18 37.0 49.0 %

Performed by

PCL Clinical Laboratory - Core

Administrative

CPT Codes

85013

MICROSPORIDIA STAIN

LAB3332

 

Collect

Stool.

Specimen Preparation

Preserve 2 g of stool in AlcorFix (ARUP Supply #52059) within one hour of collection (Min: 1 g). Available online through eSupply using ARUP Connect™ contact ARUP Client Services at (800) 522-2787. Additional specimen collection instructions can be found at https://www.aruplab.com/parasep. Preserving in 10 percent formalin is also acceptable.

Unacceptable Conditions

Unpreserved stool or specimens in any other preservative than indicated above.

Storage/Transport Temperature

Room temperature.

Stability (from collection to initiation)

Ambient: 9 months; Refrigerated: 9 months; Frozen: Unacceptable

Performed

Sun-Sat

Methodology

Qualitative Stain

Reported

1-2 days

Synonyms

  • LAB3332
  • MICROST
  • MICROSP

Additional Technical Information

Ordering Recommendations

Can be used for follow up of negative PCR result when suspicion of microsporidia infection remains high.

Reference Interval

Negative

CPT Codes

87207; 87015
Collection

LAB3332

 

Collect

Stool.

Specimen Preparation

Preserve 2 g of stool in AlcorFix (ARUP Supply #52059) within one hour of collection (Min: 1 g). Available online through eSupply using ARUP Connect™ contact ARUP Client Services at (800) 522-2787. Additional specimen collection instructions can be found at https://www.aruplab.com/parasep. Preserving in 10 percent formalin is also acceptable.

Unacceptable Conditions

Unpreserved stool or specimens in any other preservative than indicated above.

Storage/Transport Temperature

Room temperature.

Stability (from collection to initiation)

Ambient: 9 months; Refrigerated: 9 months; Frozen: Unacceptable
Ordering

Performed

Sun-Sat

Methodology

Qualitative Stain

Reported

1-2 days

Synonyms

  • LAB3332
  • MICROST
  • MICROSP

Additional Technical Information

Ordering Recommendations

Can be used for follow up of negative PCR result when suspicion of microsporidia infection remains high.
Result Interpretation

Reference Interval

Negative
Administrative

CPT Codes

87207; 87015

MINIMUM BACTERICIDAL CONC

Collect

Fresh bacterial isolate in a tape-sealed agar plate or sealed agar slant tube; double-bagged.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; organism discarded prior to request for MBC; organism fails to grow on subculture from original plates or is too fastidious to grow for susceptibility testing.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Submit bacterial isolate in an agar slant tube, double-bagged. Follow IATA shipping guidelines if applicable. Transport immediately to the laboratory.

Remarks

Please consult with the Microbiology Laboratory Director. In order to perform an MBC test, an isolate of the organism of interest must be saved at the request of the physician within 96 hours of submission of specimen for initial culture. If the organism has not been saved, the test cannot be performed. The laboratory should be informed by the physician of the specific source of the culture and culture date, as well as the specific bacterial isolate and antimicrobial agent to be tested.

Performed by

PCL Clinical Laboratory - Microbiology

Performed

Mon - Fri

Methodology

Microbroth dilution

Reported

In 2 days

Performed by

PCL Clinical Laboratory - Microbiology

CPT Codes

87187
Collection

Collect

Fresh bacterial isolate in a tape-sealed agar plate or sealed agar slant tube; double-bagged.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; organism discarded prior to request for MBC; organism fails to grow on subculture from original plates or is too fastidious to grow for susceptibility testing.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Submit bacterial isolate in an agar slant tube, double-bagged. Follow IATA shipping guidelines if applicable. Transport immediately to the laboratory.

Remarks

Please consult with the Microbiology Laboratory Director. In order to perform an MBC test, an isolate of the organism of interest must be saved at the request of the physician within 96 hours of submission of specimen for initial culture. If the organism has not been saved, the test cannot be performed. The laboratory should be informed by the physician of the specific source of the culture and culture date, as well as the specific bacterial isolate and antimicrobial agent to be tested.

Performed by

PCL Clinical Laboratory - Microbiology
Ordering

Performed

Mon - Fri

Methodology

Microbroth dilution

Reported

In 2 days
Result Interpretation

Performed by

PCL Clinical Laboratory - Microbiology
Administrative

CPT Codes

87187

MINIMUM INHIBITORY CONC

Collect

Fresh bacterial isolate in a tape-sealed agar plate or sealed agar slant tube; double-bagged.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; organism discarded prior to request for MIC; organism fails to grow on subculture from original plates or is too fastidious to grow for susceptibility testing.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Submit bacterial isolate in agar slant tube, double-bagged. Follow IATA shipping guidelines if applicable. Transport immediately to the laboratory.

Remarks

Please consult with the Microbiology Laboratory Director. In order to perform an MIC test, an isolate of the organism of interest must be saved at the request of the physician within 96 hours of submission of specimen for initial culture. If the organism has not been saved, the test cannot be performed. The laboratory should be informed by the physician of the specific source of the culture and culture date, as well as the specific bacterial isolate and antimicrobial agent to be tested.

Performed by

PCL Clinical Laboratory - Microbiology

Performed

Mon - Fri

Methodology

Microbroth dilution or E-test

Reported

In 2 days

Performed by

PCL Clinical Laboratory - Microbiology

CPT Codes

87181
Collection

Collect

Fresh bacterial isolate in a tape-sealed agar plate or sealed agar slant tube; double-bagged.

Unacceptable Conditions

Sample not properly identified; incorrect container; insufficient sample volume; organism discarded prior to request for MIC; organism fails to grow on subculture from original plates or is too fastidious to grow for susceptibility testing.

Storage/Transport Temperature

Internal: Deliver to lab immediately.
Offsite: Submit bacterial isolate in agar slant tube, double-bagged. Follow IATA shipping guidelines if applicable. Transport immediately to the laboratory.

Remarks

Please consult with the Microbiology Laboratory Director. In order to perform an MIC test, an isolate of the organism of interest must be saved at the request of the physician within 96 hours of submission of specimen for initial culture. If the organism has not been saved, the test cannot be performed. The laboratory should be informed by the physician of the specific source of the culture and culture date, as well as the specific bacterial isolate and antimicrobial agent to be tested.

Performed by

PCL Clinical Laboratory - Microbiology
Ordering

Performed

Mon - Fri

Methodology

Microbroth dilution or E-test

Reported

In 2 days
Result Interpretation

Performed by

PCL Clinical Laboratory - Microbiology
Administrative

CPT Codes

87181

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