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Aldosterone LC-MS/MS, Serum/Plasma

Test ID: ALDO S

Test

Method

LC-MS/MS

Report Includes

Aldosterone

Specimens

Serum; Plasma (EDTA)

Test Location

St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8

Test Version

29-Mar-2021

Specimen

Specimens

Serum; Plasma (EDTA)

Sample Volume

1 mL

Minimum Volume

0.5 mL

Patient Preparation

Patient should not restrict sodium intake. The following medications should be held for 4 weeksprior to testing or for as long as clinically feasible: spironolactone, eplerenone, amiloride, triamterene, potassium-wasting diuretics, confectionary licorice, or chewing tobacco. Please refer to the 2016 Endocrine Society Practice Guidelines for more information (Funder et al., J Clin Endocrinol Metab 2016).

Collection & Handling

Collection Instructions

Collect blood midmorning, after the patient has been up (sitting, standing, or walking) for at least 2 hours and seated for 5-15 minutes.

Handling Information

Store and send frozen.

Additional Information

Indicate whether patient was supine or upright during sample collection. Indicate renal vein collections on requisition to ensure fastest analytical TAT and reporting of high concentrations following analysis of dilutions.

Stability

Refrigerated 1 Day
Frozen >1 Day

Rejection Criteria

Hemolysis Visible

Test Version

29-Mar-2021

Performance / Interpretation

Method

LC-MS/MS

Turnaround Time

10 days

Results

Name Units Reference Range Conversion Factor
Aldosterone pmol/L
  • See Table
AgeSupineUpright
0 - 6 days200 - 510080 - 2200
7 - 29 days140 - 485080 - 2200
1 - 12 months140 - 250080 - 2200
1 - 9 years140 - 150080 - 2200
10 y and Over30 - 41570 - 660

Test Location

St. Michael's Hospital, 30 Bond Street, Toronto ON M5B 1W8

Test Version

29-Mar-2021

Interface / Setup

HL7 Interface Codes

Order Code Result Codes Units
ALDO S 2460Aldosterone pmol/L

Test Version

29-Mar-2021