Enzyme Immunoassay (EIA)
Patient preparation: Patient should be on a normal sodium diet, 110 mEq of sodium. Patient should be in a recumbent posture for at least 30 minutes prior to drawing specimen. Diuretics, mineralocorticoids, glucocorticoids, estrogens, oral contraceptives, ACT medications and sodium, potassium, and posture all affect Angiotensin levels.
Specimen Type: Plasma
Collection Container/Tube: EDTA
Submission Container/Tube: Plastic vial
Specimen Volume: 3 mL
1. Draw blood in a lavender-top (EDTA) tube(s).
2. Separate plasma from cells immediately after collection and send 3 mL of EDTA plasma frozen in plastic vial.
|Hemolysis||Mild reject; Gross reject|
|Lipemia||Mild reject; Gross reject|
|Other||Specimens other than Plasma ETDA. Test is strict frozen|
|Specimen Type||Temperature||Time||Special Container|
|Plasma EDTA||Frozen||30 days|
Angiotensin I is a ten amino acid peptide formed by Renin cleavage of
Angiotensinogen (Renin Substrate). Angiotensin I has little biological
activity except that high levels can stimulate Catecholamine production.
It is metabolized to its biologically active byproduct Angiotensin II by
Angiotensin Converting Enzyme (ACE). The formation of Angiotensin I is
controlled by negative feedback of Angiotensin II and II on Renin
release and by Aldosterone concentration. Levels of Angiotensin I are
increased in many types of hypertension. Angiotensin I levels are used
to determine Renin activity. Angiotensin I is excreted directly into the
Up to 25 pg/mL
Monday through Friday
This test was performed using a kit that has not been cleared or
approved by the FDA and is designated as research use only.
The analytic performance characteristics of this test have been
determined by Inter Science Institute. This test is not intended for
diagnosis or patient management decisions without confirmation
by other medically established means.
|Test Id||Test Order Name||Order LOINC Value|
|FANGI||Angiotensin I, P||1858-0|
|Result Id||Test Result Name||
Result LOINC Value
Applies only to results expressed in units of measure originally reported by the performing laboratory. These values do not apply to results that are converted to other units of measure.
|Z0939||Angiotensin I, P||1858-0|