TEST

CODE

SPECIMEN REQUIREMENT

VACUTAINER

BILLING

LOC

LACTIC ACID

(LACTATE)

LAC

Plasma, 2 mL

Centrifuge and separate as soon as possible

Store and ship refrigerated.

TAT – 3 days

GREY

OHIP

LL

LACTIC DEHYDROGENASE

(LD, LDH)

LDH

Serum

Centrifuge only

Hemolyzed specimens are not acceptable

TAT – 1 day

YELLOW SST

OHIP

BTL

LACTIC DEHYDROGENASE, ISOENZYMES

(LD ISOENZYMES)

(LDH ISOENZYMES)

(LD FRACTIONATION)

 RCML

Serum, 2 mL

Centrifuge only

DO NOT REFRIGERATE

Store and ship at Room Temperature

TAT -- 7 days

YELLOW SST

 OHIP

 LL

LACTOSE TOLERANCE

(LACTOSE ABSORPTION TEST)

 

*2 Codes required

 

 

 

 

LTT

*Test only available at the main lab (2006 Roberston rd.) Mon-Fri 7:30-4:00pm

Plasma

Adult dose 50g lactose dissolved in 300 mL water

Child Dose: 2 grams lactose per kilogram of body

Weight to a maximum of 50 g

Collect 3 samples: fasting, ½ h after finishing drink, then 1h after finishing drink

Label each tube with the corresponding timed collection interval.

Additional intervals of collection may be requested by the physician.

TAT – 1 day

GREY

OHIP

BTL

LAMOTRIGINE

(LAMICTAL)

LAM

Serum, 2 mL

Collect specimen 10 – 12 hours after last dose

Record time in hours that have elapsed between last dose and specimen collection

TAT – 20 days

PLAIN RED

OHIP

LL

LANOXIN

(DIGITALIS)

See DIGOXIN

DIG

 

 

 

 

LAP

(LEUCINE AMINOPEPTIDASE)

 

Serum AND 24 Hour Urine

TESTS NO LONGER AVAILABLE

 

 

 

LAP

(LEUKOCYTE ALKALINE PHOSPHATASE)

(NEUTROPHIL ALKALINE PHOSPHATASE)

 

Direct patient to the Ottawa General Hospital

 

 

 

LARGACTIL

See CHLORPROMAZINE

CHLOR

 

 

 

 

LATEX FIXATION

(RA, RA FACTOR)

(RA FIXATION)

(RHEUMATOID FACTOR)

ART

Serum

Centrifuge only

TAT – 1 day

YELLOW SST

OHIP

BTL

LATS

(LONG ACTING THYROID STIMULATOR, TB11)

(THYROTROPIN

BINDING INHIBITING IMMUNOGLOBULIN)

(THYROID STIMULATING ANTIBODY)

(THYROID RECEPTOR ANTIBODIES)

(TRAB-TSH RECEPTOR ANTIBODIES)

(TBIG)

(TSI)

(THYROTROPIN RECEPTOR AB)

TSA

Serum, 2 mL

Allow blood to clot for 30 minutes

Centrifuge and separate within 1 hour of collection

Store and transport frozen

Requires clinical information re:

Thyroid status, presence of exophthalmos

TAT – 15 days

YELLOW SST

$80.00

LL

 

 

 

 

 

 

LCM ANTIBODY

(LYMPHOCYTIC CHORIOMENINGITIS ANTIBODY)

RPHL

Serum, 1 mL

Centrifuge only

Store and transport refrigerated

TAT—28 days

YELLOW SST

N/C

PHL

LDH

(LH)

See LACTIC DEHYDROGENASE

LDH

 

 

 

 

LDH ISOENZYMES

(LD ISOENZYMES)

See LACTIC DEHYDROGENASE, ISOENZYMES

 RCML

 

 

 

 

LDL CHOLESTEROL

See HDL/LDL CHOLESTEROL

 

*If patient not fasting

HDL

 

 

RHDL

 

 

 

 

LE CELL PREPARATION

LE

Blood

Do not remove plasma from cells

TAT – 1 day

GREEN

with Heparin

OHIP

LL

LE SCREEN

(LE LATEX)

 

TEST NO LONGER AVAILABLE

 

 

 

LEAD

LED

Blood

DO NOT CENTRIFUGE

TAT – 7 days

ROYAL BLUE

with K2EDTA

OHIP

LL

LEAD

 

24UL

24 Hour Urine (Acid Washed Container)

*Order Acid Washed Container from Main Lab as required.

Submit a 7mL sample in a labelled ROYAL BLUE top tube (WITHOUT ADDITIVE)

Record total volume on requisition and on the specimen container

Store and ship refrigerated

Retain a duplicate 90mL urine sample in the fridge until test is reported

TAT – 1-2 weeks

 

 

OHIP

 

LL

LEGIONELLOSIS

(LEGIONAIRES DISEASE)

(Legionella)

LEGIN

Serum, 1 mL

Centrifuge only

Store and transport refrigerated

TAT—5 days

YELLOW SST

N/C

PHL

LEPTOSPIRA ANTIBODIES

(LEPTOSPIROSIS ANTIBODIES)

(WEIL’S DISEASE)

RPHL

Serum, 1 mL

Centrifuge only

Store and transport refrigerated

​An acute (collected early after the onset of symptoms) and a convalescent (collected 2-3 weeks later) may be required for laboratory diagnosis. 

TAT—42 days

YELLOW SST

N/C

PHL

LEPTOSPIROSIS, URINE

 

TEST NO LONGER AVAILABLE

 

 

 

LEUCINE AMINOPEPTIDASE

(LAP)

 

Serum and 24 hour urine

TESTS NO LONGER AVAILABLE

 

 

 

LEUKOCYTE ALKALINE PHOSPHATASE

(NEUTROPHIL ALKALINE PHOSPHATASE)

See LAP

 

 

 

 

 

 

 

 

 

 

 

LEUKOCYTE COUNT

(WBC)

See BLOOD FILM EXAMINATION

CBC

 

 

 

 

LEVETIRACETAM

See KEPPRA

RCML

       

LH

(LUTEINIZING HORMONE)

See INTERSTITIAL CELL STIMULATING HORMONE

LH

 

 

 

 

LIBRIUM

See CHLORDIAZEPOXIDE

RCML

 

 

 

 

LICE

(BUGS)

See ARTHROPODS

RPHL

 

 

 

 

LIGHT CHAINS IMMUNO ELECTROPHORESIS

(HEAVY & LIGHT CHAINS IMMUNO-ELECTROPHORESIS)

(IEP-RANDOM)

See BENCE JONES PROTEIN

 

BENC

 

 

 

 

LIGHT CHAINS IMMUNO ELECTROPHORESIS

See HEAVY & LIGHT CHAINS IMMUNO ELECTROPHORESIS

 

IMM

 

 

 

LIPASE

LIPX

Serum

Centrifuge only

TAT – 1 days

YELLOW SST

OHIP

BTL

LIPID PROFILE (Fasting)

LIPIDS, TOTAL (Random)

See HDL/LDL CHOLESTEROL

HDL

RHDL

 

 

 

 

LIPOPROTEIN a

LP(a)

LIPOA

 Serum, 2 mL

Patient must be fasting minimum 12 hours

Centrifuge and separate

Store and ship refrigerated

TAT - -8 days

YELLOW

SST

 $30.00

 LL

LIPOPROTEIN PHENOTYPING WITH ELECTROPHORESIS

 

TEST NO LONGER AVAILABLE

 

 

 

LISTERIA ANTIBODY

 

TEST NO LONGER AVAILABLE

 

 

 

LITHIUM

RLI

Serum

Centrifuge only

Collect specimen 10 – 12 hours after last dose

Record time in hours that have elapsed between last dose and specimen collection

TAT – 1 day

YELLOW SST

OHIP

LL

LONG ACTING THYROID STIMULATOR

(TB11)

(THYROTROPIN BINDING INHIBITING IMMUNOGLOBULIN)

(THYROID STIMULATING ANTIBODY)

(THYROID RECEPTOR ANTIBODIES)

(TRAB-TSH RECEPTOR ANTIBODIES)

See LATS

TSA

 

 

 

LORAZEPAM

(ATIVAN)

RCML

Serum, 1 mL

Collect specimen 10 – 12 hours after last dose

Record time in hours that have elapsed between last dose and specimen collection

Centrifuge and separate

Store and transport frozen

TAT – 15 days

PLAIN RED

OHIP

LL

LORAZEPAM

 

URINE TEST NO LONGER AVAILABLE

 

 

 

LP-PLA2

(PLAC)

(LIPOPROPROTEIN ASSOCIATED PHOSPHOROUS A2)

(LP-PLAC2)

(LP-PLAC)

(LP-AL2)

RCML

Plasma

Centrifuge and separate

Store and transport refrigerated

TAT--1-2 weeks

LAVENDER

$85.00

LL

LUDIOMIL

(MAPROTILINE)

RCML

Plasma, 3 mL

Collect specimen 10 – 12 hours after last dose

Record time in hours that have elapsed between last dose and specimen collection.

Centrifuge and separate

Refrigerate during storage and transport.

TAT – 20 days

GREEN

with Heparin

OHIP

LL

LUPUS ANTICOAGULANT

(NON SPECIFIC COAGULATION INHIBITORS)

See CIRCULATING ANTICOAGULANT

LUANT

 

 

 

 

LUTEINIZING HORMONE

(LH)

See INTERSTITIAL CELL STIMULATING HORMONE

LH

 

 

 

 

LUVOX

See FLUVOXAMINE

LUVOX

 

 

 

 

LYME DISEASE

(LA-2 ANTIBODIES)

(OSPA ANTIBODIES)

See BORRELIA BURGDORFERI

LYM

 

 

 

 

LYMPHOCYTE MARKERS

(T & B CELLS)

See IMMUNO PHENOTYPING

CD3

CD4

CD8

 

 

 

 

LYMPHOCYTIC CHORIOMENINGITIS ANTIBODY

See LCM ANTIBODY

RPHL

 

 

 

 

LYMPHOGRANULOMA

VENEREUM GROUP

ANTIBODIES

(LGV)

See CHLAMYDIA, SEROLOGY

 

RPHL

 

 

 

 

LYSOZYME

(MURAMIDASE)

RCML

Serum

Centrifuge and separate

Store and transport frozen

TAT – 1-2 weeks

PLAIN RED

$360.00

LL

LYSOZYME

(MURAMIDASE)

RCML

Urine, 25ml (random)

Store and transport frozen

TAT 1-2 weeks

 

$175.00

LL

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