81638-9

LOINC Code


LOINC code81638-9
name
descriptionThe Sukharev clotting time uses capillary blood and a test tube called the Panchenkov's device that is manually tilted every 30 seconds until the blood clot has formed. The tube has a diameter of 1mm and the reference range is 2-5 minutes. In contrast, the Lee White method, which is also manual, uses a tube with a diameter of 8-10mm, which results in a larger volume of blood and longer testing time with a reference range of 5-10 minutes.
statusACTIVE

Fully-Specified Name

componentClotting time
propertyTime  =  Time Duration
timePt  =  Point in time:  To identify measures at a point in time. This is a synonym for “spot” or “random” as applied to urine measurements.
systemBldC  =  Blood capillary
scaleQn  =  Quantitative:  The result of the test is a numeric value that relates to a continuous numeric scale. Reported either as an integer, a ratio, a real number, or a range. The test result value may optionally contain a relational operator from the set {<=, <, >, >=}. Valid values for a quantitative test are of the form "7", "-7", "7.4", "-7.4", "7.8912", "0.125", "<10", "<10.15", ">12000", 1-10, 1:256
methodSukharev

Additional Names

short nameBlood - capillary; Cap bld; Cap blood; Capillary bld; Capillary blood; Clot; Clot tm; Clottable; COAGULATION; Coagulation time; Finger stick; Hematology; Heme; Point in time; QNT; Quan; Quant; Quantitative; Random; Rate; R-time

Basic Attributes

classCOAG
type1  Laboratory
order vs. observationClot tm BldC Su
example UCUM unitsmin
The Unified Code for Units of Measure (UCUM) is a code system intended to include all units of measures being contemporarily used in international science, engineering, and business (www.unitsofmeasure.org)

History/Usage

first released
last updated2.82
last change typeMIN  - change to field other than name
change reasonmin

Related Names



Copyright © 2026 Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © 1995-2026, Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.

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