87557-5

LOINC Code


LOINC code87557-5
name
descriptionThis panel contains quantitative results for free & total protein S Ag in human plasma. The test may be order for patients with a history of thrombosis to evaluate for possible protein S deficiency either due to a congenital inherited disorder or an acquired condition, such as liver disease or vitamin K deficiency.
statusACTIVE

Fully-Specified Name

componentProtein S Ag & protein S Ag.free panel
propertyRelMCnc  =  Relative Mass Concentration
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.
systemPPP  =  Platelet poor plasma
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
methodIA  =  Immunoassay:  Encompasses all immunoassays with a few exceptions, including Immune Blot and Immune Fluorescence, which were created based on historic usage.

Additional Names

short nameCOAGULATION; EIA; ELFA; ELISA; Enzyme immunoassay; FR; IAA; MEIA; MNSs Blood Group System; Non-protein bound; Pan; PANEL.COAGULATION; Panl; Plas; Platelet poor plasma; Pnl; Point in time; PR; Prot; Prot S; Prot S Ag + Prot S Ag.free Pnl; PS; QNT; Quan; Qu

Basic Attributes

classPANEL.COAG
type1  Laboratory
order vs. observationProt S Ag + Pro

Panel Components

27821-8
27823-4

History/Usage

first released
last updated2.63
last change typeADD  - added

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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