Specimen Handling

Do Not insert any utensil or pipet into the specimen. Transfer specimen by pouring.

Collect

Royal blue (No Additive), Royal blue (K2EDTA), or Royal blue (NaHep).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection Transfer 2 mL serum or plasma to an ARUP Trace Element-Free Transport Tube (ARUP supply #43116) available online through eSupply using ARUP Connect or contact ARUP Client Services at (800) 522-2787. (Min: 0.5 mL)

Storage/Transport Temperature

Room temperature. Also acceptable: Refrigerated or frozen.

Stability (from collection to initiation)

Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Indefinitely

Unacceptable Conditions

Specimens that are not separated from the red cells or clot within 2 hours. Specimens collected in containers other than specified. Specimens transported in containers other than specified. Hemolyzed specimens.

Referral Lab

Patient Preparation

Diet, medication, and nutritional supplements may introduce interfering substances. Upon the advice of their physician, patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and nonessential over-the-counter medications for one week prior to sample draw.

Ordering Recommendations

May be useful as an indicator of acute deficiency. For acute toxicity, Zinc, Urine (0020462) may be a more reliable indicator of exposure.

Methodology

Quantitative Inductively Coupled Plasma-Mass Spectrometry

Performed

Sun-Sat

Reported

1-3 days

Additional Technical Information

Synonyms

  • Zn
  • ZNS
  • serum zinc level

Interpretive Data

Elevated results may be due to skin or collection-related contamination, including the use of a noncertified metal-free collection/transport tube. If contamination concerns exist due to elevated levels of serum/plasma zinc, confirmation with a second specimen collected in a certified metal-free tube is recommended.

Circulating zinc concentrations are dependent on albumin status and are depressed with malnutrition.  Zinc may also be lowered with infection, inflammation, stress, oral contraceptives, and pregnancy.  Zinc may be elevated with zinc supplementation or fasting.  Elevated zinc concentrations may interfere with copper absorption.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Reference Interval

60.0-120.0 µg/dL

CPT Codes

84630

Performing Lab

ARUP Laboratories
Collection

Specimen Handling

Do Not insert any utensil or pipet into the specimen. Transfer specimen by pouring.

Collect

Royal blue (No Additive), Royal blue (K2EDTA), or Royal blue (NaHep).

Specimen Preparation

Separate from cells ASAP or within 2 hours of collection Transfer 2 mL serum or plasma to an ARUP Trace Element-Free Transport Tube (ARUP supply #43116) available online through eSupply using ARUP Connect or contact ARUP Client Services at (800) 522-2787. (Min: 0.5 mL)

Storage/Transport Temperature

Room temperature. Also acceptable: Refrigerated or frozen.

Stability (from collection to initiation)

Ambient: Indefinitely; Refrigerated: Indefinitely; Frozen: Indefinitely

Unacceptable Conditions

Specimens that are not separated from the red cells or clot within 2 hours. Specimens collected in containers other than specified. Specimens transported in containers other than specified. Hemolyzed specimens.

Referral Lab

Ordering

Patient Preparation

Diet, medication, and nutritional supplements may introduce interfering substances. Upon the advice of their physician, patients should be encouraged to discontinue nutritional supplements, vitamins, minerals, and nonessential over-the-counter medications for one week prior to sample draw.

Ordering Recommendations

May be useful as an indicator of acute deficiency. For acute toxicity, Zinc, Urine (0020462) may be a more reliable indicator of exposure.

Methodology

Quantitative Inductively Coupled Plasma-Mass Spectrometry

Performed

Sun-Sat

Reported

1-3 days

Additional Technical Information

Synonyms

  • Zn
  • ZNS
  • serum zinc level
Result Interpretation

Interpretive Data

Elevated results may be due to skin or collection-related contamination, including the use of a noncertified metal-free collection/transport tube. If contamination concerns exist due to elevated levels of serum/plasma zinc, confirmation with a second specimen collected in a certified metal-free tube is recommended.

Circulating zinc concentrations are dependent on albumin status and are depressed with malnutrition.  Zinc may also be lowered with infection, inflammation, stress, oral contraceptives, and pregnancy.  Zinc may be elevated with zinc supplementation or fasting.  Elevated zinc concentrations may interfere with copper absorption.

This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.

Reference Interval

60.0-120.0 µg/dL
Administrative

CPT Codes

84630

Performing Lab

ARUP Laboratories

ARUP Consult®

Disease Topics