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Protime

eDH Procedure Code(s)

LAB320 Prothrombin Time
LAB510 Massive Hemorrhage Lab Panel

Collection Information

1.8 mL Sodium Citrate tube filled to the line
OR
2.7 mL Sodium Citrate tube filled to the line
Blue top tubes must be filled within 10% of the stated volume. A discard tube must be used if a citrate tube is to be drawn using a winged blood collection set. It is important to remove air from the blood collection set to ensure the proper blood volume is obtained in the coag tube.
If the patient has a known hematocrit >55%, please contact the coagulation lab for an adjusted collection tube before drawing the blood.
DHMC Lebanon only: If needed, 1mL sodium citrate tubes can be prepared by the laboratory. These are a non-vacuum orange screw cap tube with lab prepared anticoagulant. To obtain some of these custom tubes please call the coagulation laboratory at 5-9463.

Specimen Information

Specimen Type Specimen Source Acceptable Containers Minimum Test Volume (mL)
Blood Blood, Venous BluCit-F 0.3
Blood Blood, Venous Adjusted-F 0.3

Shipping and Handling

Processing Instructions: Samples are good for 24 hours spun or unspun. No refrigeration allowed, maintain at room temperature.

Transport Temperature: Room Temperature
Transport Instructions: N/A

Specimen Stability Unprocessed
Unprocessed: 24 hours
Specimen Stability Post Processing
Ambient: 24 hours
Refrigerate: N/A
Frozen: 2 weeks

Test Components

Component LOINC Code
INTERNATIONAL NORMALIZATION RATIO 6301-6
PROTHROMBIN TIME 5902-2

Turnaround Time (TAT)

STAT 1 Hour
Routine 4 Hours

CPT Code(s)

85610

Performing Lab Section

Coagulation

Performing Lab(s)

Alice Peck Day Memorial Hospital Laboratory (APD)
Cheshire Medical Center Laboratory (CHE)
Concord Clinic Laboratory (CON)
Dartmouth Hitchcock Medical Center Laboratory (MHMH)
Manchester Clinic Laboratory (MAN)
Mt. Ascutney Hospital and Health Center Laboratory (MAH)
Nashua Clinic Laboratory (NSH)
New London Hospital Laboratory (NLH)