57825-2

LOINC 2.82

Cortisol Free [Mass/volume] in Serum or Plasma --PM trough specimen

Cortis F PM SerPl-mCnc

Definition

  • Identifies an evening specimen when free cortisol is at its lowest point in a circadian cycle -often considered to be midnight. Some laboratories will call this "12AM (midnight)" specimen, but specimens in the range of 11PM to 1AM are acceptable. The trough time may have to be adjusted for patients on different work shifts because their circadian rhythms can shift with their sleeping time.

Component

  • Cortisol.free^PM trough specimen

Specimen / system

  • Ser/Plas

Class

  • CHEM

Property

  • MCnc

Scale

  • Qn

Related names

  • 12 AM; 12AM; 17-Hydroxycorticosterone; Chemistry; circadian low; Compound F; Coritsol; Cort; Cortis F; Evening; F; FR; hydrocortisone; late night specimen; Level; Mass concentration; Midnight; Non-protein bound; Pl; Plasma; Plsm; PM diurnal trough; Point in time; Pre; Predose; Pre-dose; QNT; Quan; Quant; Quantitative; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; Spec; SR

Index terms

  • 12 AM
  • 12AM
  • 17-Hydroxycorticosterone
  • Chemistry
  • circadian low
  • Compound F
  • Coritsol
  • Cort
  • Cortis F
  • Cortisol.free^PM trough specimen
  • Evening
  • F
  • FR
  • hydrocortisone
  • late night specimen
  • Level
  • Mass concentration
  • Midnight
  • Non-protein bound
  • Pl
  • Plasma
  • Plsm
  • PM diurnal trough
  • Point in time
  • Pre
  • Pre-dose
  • Predose
  • QNT
  • Quan
  • Quant
  • Quantitative
  • Random
  • SerP
  • SerPl
  • SerPlas
  • Serum
  • Serum or plasma
  • Spec
  • SR