Hemocytometer for cell count, Wright stained cytospin preparation for differential
Reported
STAT 1 hour. Routine 4 hours
Additional Information
Cell counts and differentials on biliary fluid have not proven to be useful, due to the disruption of the cellular elements by bile acids, and are thus not offered for this specimen type. An assessment for the presence of WBC in biliary drainage fluid is included in the examination of biliary fluid for crystals.
Note: Cell differentials are performed on a concentrated sample. Therefore a differential can be reported even if the reported WBC is 0 x 109/L.
Reflex Testing
If unusual findings are noted a pathologist review and interpretation may be performed and separately billed for.
Synonyms
Body fluid cell count
pleural fluid cell count
peritoneal fluid cell count
synovial fluid cell count
Pericardial fluid cell count
joint fluid cell count
Sample Type
Body Fluid
Collect
Lavender top or Dark Green top
Amount to Collect
See preferred volume
Preferred Volume
> 2 mL fluid
Minimum Volume
1 mL fluid
Remarks
Deliver samples IMMEDIATELY to the laboratory. Specimen label must contain the date and time the sample was collected and the legible name of the person who collected the sample.
Stability (from collection to initiation)
Pleural, Pericardial, Peritoneal & Bronchoalveolar Lavage (BAL): Delay in analysis will cause cell lysis, cellular degeneration, and bacterial growth which can affect the test results. Samples received two (2) hours after collection are accepted but results modified as follows: “Sample stability period exceeded or collection time unknown. Cellular degeneration can begin within one hour of collection, interpret results accordingly. See Lab Manual for Moffitt-Long and Mt. Zion for more information".
Synovial: Delayed interpretation of synovial fluids may lead to false-negative findings. Studies have shown that WBC's disintegrate with time. Based on a small in-house study performed on refrigerated samples, WBC decreased by ~10% at 6 hours; although the proportion of cell loss may depend on the types of WBC's present. Studies have also shown that crystals such as CPPD dissolve with time. MSU crystals remained stable for several weeks.
Unacceptable Conditions
Sample received in a syringe with needle attached.
Test Code
CCDB
Test Group
Cell Count and Differential
Performing Lab
Parnassus & Mission Bay Hematology
Specimen Preparation
Deliver sample immediately to Hematology for testing.
Preferred Volume
> 2 mL fluid
Minimum Volume
1 mL fluid
Unacceptable Conditions
Sample received in a syringe with needle attached.
Stability (from collection to initiation)
Pleural, Pericardial, Peritoneal & Bronchoalveolar Lavage (BAL): Delay in analysis will cause cell lysis, cellular degeneration, and bacterial growth which can affect the test results. Samples received two (2) hours after collection are accepted but results modified as follows: “Sample stability period exceeded or collection time unknown. Cellular degeneration can begin within one hour of collection, interpret results accordingly. See Lab Manual for Moffitt-Long and Mt. Zion for more information".
Synovial: Delayed interpretation of synovial fluids may lead to false-negative findings. Studies have shown that WBC's disintegrate with time. Based on a small in-house study performed on refrigerated samples, WBC decreased by ~10% at 6 hours; although the proportion of cell loss may depend on the types of WBC's present. Studies have also shown that crystals such as CPPD dissolve with time. MSU crystals remained stable for several weeks.
Units
x109/L (this is equivalent to x103/mm3 or x103/µL)
Reference Interval
The reference range and other method performance specifications have not been established by the UCSF Clinical Laboratory for this body fluid. The test result must be integrated into the clinical context for interpretation.
Critical Values
Samples positive for microorganisms from normally sterile sites
Additional Information
Cell counts and differentials on biliary fluid have not proven to be useful, due to the disruption of the cellular elements by bile acids, and are thus not offered for this specimen type. An assessment for the presence of WBC in biliary drainage fluid is included in the examination of biliary fluid for crystals.
Note: Cell differentials are performed on a concentrated sample. Therefore a differential can be reported even if the reported WBC is 0 x 109/L.
CPT Codes
89051
LOINC Codes
34557-9
Available Stat
Yes
Test Code
CCDB
Test Group
Cell Count and Differential
Performing Lab
Parnassus & Mission Bay Hematology
Performed
Test available 24 hours per day 7 days per week
Methodology
Hemocytometer for cell count, Wright stained cytospin preparation for differential
Remarks
Deliver samples IMMEDIATELY to the laboratory. Specimen label must contain the date and time the sample was collected and the legible name of the person who collected the sample.
Collect
Lavender top or Dark Green top
Amount to Collect
See preferred volume
Sample Type
Body Fluid
Preferred Volume
> 2 mL fluid
Minimum Volume
1 mL fluid
Unacceptable Conditions
Sample received in a syringe with needle attached.
Specimen Preparation
Deliver sample immediately to Hematology for testing.
Units
x109/L (this is equivalent to x103/mm3 or x103/µL)
Reference Interval
The reference range and other method performance specifications have not been established by the UCSF Clinical Laboratory for this body fluid. The test result must be integrated into the clinical context for interpretation.
Critical Values
Samples positive for microorganisms from normally sterile sites
Synonyms
Body fluid cell count
pleural fluid cell count
peritoneal fluid cell count
synovial fluid cell count
Pericardial fluid cell count
joint fluid cell count
Stability (from collection to initiation)
Pleural, Pericardial, Peritoneal & Bronchoalveolar Lavage (BAL): Delay in analysis will cause cell lysis, cellular degeneration, and bacterial growth which can affect the test results. Samples received two (2) hours after collection are accepted but results modified as follows: “Sample stability period exceeded or collection time unknown. Cellular degeneration can begin within one hour of collection, interpret results accordingly. See Lab Manual for Moffitt-Long and Mt. Zion for more information".
Synovial: Delayed interpretation of synovial fluids may lead to false-negative findings. Studies have shown that WBC's disintegrate with time. Based on a small in-house study performed on refrigerated samples, WBC decreased by ~10% at 6 hours; although the proportion of cell loss may depend on the types of WBC's present. Studies have also shown that crystals such as CPPD dissolve with time. MSU crystals remained stable for several weeks.
Reported
STAT 1 hour. Routine 4 hours
Reflex Testing
If unusual findings are noted a pathologist review and interpretation may be performed and separately billed for.
Additional Information
Cell counts and differentials on biliary fluid have not proven to be useful, due to the disruption of the cellular elements by bile acids, and are thus not offered for this specimen type. An assessment for the presence of WBC in biliary drainage fluid is included in the examination of biliary fluid for crystals.
Note: Cell differentials are performed on a concentrated sample. Therefore a differential can be reported even if the reported WBC is 0 x 109/L.
CPT Codes
89051
LOINC Codes
34557-9
Ordering
Available Stat
Yes
Performing Lab
Parnassus & Mission Bay Hematology
Performed
Test available 24 hours per day 7 days per week
Methodology
Hemocytometer for cell count, Wright stained cytospin preparation for differential
Reported
STAT 1 hour. Routine 4 hours
Additional Information
Cell counts and differentials on biliary fluid have not proven to be useful, due to the disruption of the cellular elements by bile acids, and are thus not offered for this specimen type. An assessment for the presence of WBC in biliary drainage fluid is included in the examination of biliary fluid for crystals.
Note: Cell differentials are performed on a concentrated sample. Therefore a differential can be reported even if the reported WBC is 0 x 109/L.
Reflex Testing
If unusual findings are noted a pathologist review and interpretation may be performed and separately billed for.
Synonyms
Body fluid cell count
pleural fluid cell count
peritoneal fluid cell count
synovial fluid cell count
Pericardial fluid cell count
joint fluid cell count
Collection
Sample Type
Body Fluid
Collect
Lavender top or Dark Green top
Amount to Collect
See preferred volume
Preferred Volume
> 2 mL fluid
Minimum Volume
1 mL fluid
Remarks
Deliver samples IMMEDIATELY to the laboratory. Specimen label must contain the date and time the sample was collected and the legible name of the person who collected the sample.
Stability (from collection to initiation)
Pleural, Pericardial, Peritoneal & Bronchoalveolar Lavage (BAL): Delay in analysis will cause cell lysis, cellular degeneration, and bacterial growth which can affect the test results. Samples received two (2) hours after collection are accepted but results modified as follows: “Sample stability period exceeded or collection time unknown. Cellular degeneration can begin within one hour of collection, interpret results accordingly. See Lab Manual for Moffitt-Long and Mt. Zion for more information".
Synovial: Delayed interpretation of synovial fluids may lead to false-negative findings. Studies have shown that WBC's disintegrate with time. Based on a small in-house study performed on refrigerated samples, WBC decreased by ~10% at 6 hours; although the proportion of cell loss may depend on the types of WBC's present. Studies have also shown that crystals such as CPPD dissolve with time. MSU crystals remained stable for several weeks.
Unacceptable Conditions
Sample received in a syringe with needle attached.
Processing
Test Code
CCDB
Test Group
Cell Count and Differential
Performing Lab
Parnassus & Mission Bay Hematology
Specimen Preparation
Deliver sample immediately to Hematology for testing.
Preferred Volume
> 2 mL fluid
Minimum Volume
1 mL fluid
Unacceptable Conditions
Sample received in a syringe with needle attached.
Stability (from collection to initiation)
Pleural, Pericardial, Peritoneal & Bronchoalveolar Lavage (BAL): Delay in analysis will cause cell lysis, cellular degeneration, and bacterial growth which can affect the test results. Samples received two (2) hours after collection are accepted but results modified as follows: “Sample stability period exceeded or collection time unknown. Cellular degeneration can begin within one hour of collection, interpret results accordingly. See Lab Manual for Moffitt-Long and Mt. Zion for more information".
Synovial: Delayed interpretation of synovial fluids may lead to false-negative findings. Studies have shown that WBC's disintegrate with time. Based on a small in-house study performed on refrigerated samples, WBC decreased by ~10% at 6 hours; although the proportion of cell loss may depend on the types of WBC's present. Studies have also shown that crystals such as CPPD dissolve with time. MSU crystals remained stable for several weeks.
Result Interpretation
Units
x109/L (this is equivalent to x103/mm3 or x103/µL)
Reference Interval
The reference range and other method performance specifications have not been established by the UCSF Clinical Laboratory for this body fluid. The test result must be integrated into the clinical context for interpretation.
Critical Values
Samples positive for microorganisms from normally sterile sites
Additional Information
Cell counts and differentials on biliary fluid have not proven to be useful, due to the disruption of the cellular elements by bile acids, and are thus not offered for this specimen type. An assessment for the presence of WBC in biliary drainage fluid is included in the examination of biliary fluid for crystals.
Note: Cell differentials are performed on a concentrated sample. Therefore a differential can be reported even if the reported WBC is 0 x 109/L.
Administrative
CPT Codes
89051
LOINC Codes
34557-9
Complete View
Available Stat
Yes
Test Code
CCDB
Test Group
Cell Count and Differential
Performing Lab
Parnassus & Mission Bay Hematology
Performed
Test available 24 hours per day 7 days per week
Methodology
Hemocytometer for cell count, Wright stained cytospin preparation for differential
Remarks
Deliver samples IMMEDIATELY to the laboratory. Specimen label must contain the date and time the sample was collected and the legible name of the person who collected the sample.
Collect
Lavender top or Dark Green top
Amount to Collect
See preferred volume
Sample Type
Body Fluid
Preferred Volume
> 2 mL fluid
Minimum Volume
1 mL fluid
Unacceptable Conditions
Sample received in a syringe with needle attached.
Specimen Preparation
Deliver sample immediately to Hematology for testing.
Units
x109/L (this is equivalent to x103/mm3 or x103/µL)
Reference Interval
The reference range and other method performance specifications have not been established by the UCSF Clinical Laboratory for this body fluid. The test result must be integrated into the clinical context for interpretation.
Critical Values
Samples positive for microorganisms from normally sterile sites
Synonyms
Body fluid cell count
pleural fluid cell count
peritoneal fluid cell count
synovial fluid cell count
Pericardial fluid cell count
joint fluid cell count
Stability (from collection to initiation)
Pleural, Pericardial, Peritoneal & Bronchoalveolar Lavage (BAL): Delay in analysis will cause cell lysis, cellular degeneration, and bacterial growth which can affect the test results. Samples received two (2) hours after collection are accepted but results modified as follows: “Sample stability period exceeded or collection time unknown. Cellular degeneration can begin within one hour of collection, interpret results accordingly. See Lab Manual for Moffitt-Long and Mt. Zion for more information".
Synovial: Delayed interpretation of synovial fluids may lead to false-negative findings. Studies have shown that WBC's disintegrate with time. Based on a small in-house study performed on refrigerated samples, WBC decreased by ~10% at 6 hours; although the proportion of cell loss may depend on the types of WBC's present. Studies have also shown that crystals such as CPPD dissolve with time. MSU crystals remained stable for several weeks.
Reported
STAT 1 hour. Routine 4 hours
Reflex Testing
If unusual findings are noted a pathologist review and interpretation may be performed and separately billed for.
Additional Information
Cell counts and differentials on biliary fluid have not proven to be useful, due to the disruption of the cellular elements by bile acids, and are thus not offered for this specimen type. An assessment for the presence of WBC in biliary drainage fluid is included in the examination of biliary fluid for crystals.
Note: Cell differentials are performed on a concentrated sample. Therefore a differential can be reported even if the reported WBC is 0 x 109/L.
