Notes

Not recommended for patients who have been hospitalized for >3 days.

Patient Preparation

Do not use antacids, barium, bismuth, antidiarrheal medication, or oily laxatives prior to collection of specimen.

Call Diagnostic Infectious Diseases Testing Laboratory 636-8144 for Preservative Collection Vial Set.

Collect

Fresh Stool in sterile container (See below).

 Preservative Collection Vial Set: Ambient (see below).

Minimum Collection Volume

Minimum Volume: 2.5 mL liquid stool specimens

Acceptable Specimen Collect Alternatives

Sodium Acetate-Formalin (SAF) vials

Unacceptable Conditions

Stool specimen containing barium salts, oil, or urine

Stool from patients after 3 days of hospitalization

Rectal swabs

Duodenal aspirates are unacceptable, instead order Ova and Parasite detection.

Storage/Transport Temperature

Fresh stool: Ambient or Refrigerated

Stool collected in Preservative Collection Vial Set: Ambient.

Stability (from collection to initiation)

Fresh stool: Ambient - 1 day

Stool collected in Preservative Collection Vial Set: Ambient - 1 year or up to the expiration date on collection vials

Performed

Mon-Fri

Performing Lab

Diagnostic Infectious Diseases Testing Laboratory

Remarks

If parasites other than Cryptosporidium and/or Giardia suspected, consider ordering an Ova and Parasite detection on stool.

Units of Measure

See Reference Interval

Ordering Recommendations

Parasite infection suspected as cause of persistent diarrhea.

Methodology

Direct Immunofluorescent Detection

Reported

1 Day

Tests Included

Giardia and Cryptosporidium detection.

Synonyms

  • Giardia/Cryptosporidium detection
  • O&P DFA
  • Stool, Giardia/Crypto
  • Giardia Crypto
  • O & P
  • DFA

Reference Interval

Negative for Giardia and Cryptosporidium.

CPT Codes

87269, 87272

Lab Use Only

Call DIDTL for O&P collection container

Acceptable Specimen Collect Alternatives

Sodium Acetate-Formalin (SAF) vials
Collection

Notes

Not recommended for patients who have been hospitalized for >3 days.

Patient Preparation

Do not use antacids, barium, bismuth, antidiarrheal medication, or oily laxatives prior to collection of specimen.

Call Diagnostic Infectious Diseases Testing Laboratory 636-8144 for Preservative Collection Vial Set.

Collect

Fresh Stool in sterile container (See below).

 Preservative Collection Vial Set: Ambient (see below).

Minimum Collection Volume

Minimum Volume: 2.5 mL liquid stool specimens

Acceptable Specimen Collect Alternatives

Sodium Acetate-Formalin (SAF) vials

Unacceptable Conditions

Stool specimen containing barium salts, oil, or urine

Stool from patients after 3 days of hospitalization

Rectal swabs

Duodenal aspirates are unacceptable, instead order Ova and Parasite detection.

Storage/Transport Temperature

Fresh stool: Ambient or Refrigerated

Stool collected in Preservative Collection Vial Set: Ambient.

Stability (from collection to initiation)

Fresh stool: Ambient - 1 day

Stool collected in Preservative Collection Vial Set: Ambient - 1 year or up to the expiration date on collection vials

Performed

Mon-Fri

Performing Lab

Diagnostic Infectious Diseases Testing Laboratory

Remarks

If parasites other than Cryptosporidium and/or Giardia suspected, consider ordering an Ova and Parasite detection on stool.

Units of Measure

See Reference Interval
Ordering

Ordering Recommendations

Parasite infection suspected as cause of persistent diarrhea.

Methodology

Direct Immunofluorescent Detection

Reported

1 Day

Tests Included

Giardia and Cryptosporidium detection.

Synonyms

  • Giardia/Cryptosporidium detection
  • O&P DFA
  • Stool, Giardia/Crypto
  • Giardia Crypto
  • O & P
  • DFA
Result Interpretation

Reference Interval

Negative for Giardia and Cryptosporidium.
Laboratory Personnel Use

CPT Codes

87269, 87272

Lab Use Only

Call DIDTL for O&P collection container

Acceptable Specimen Collect Alternatives

Sodium Acetate-Formalin (SAF) vials

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