TEST NAME

RA

See:  Latex RA


TEST NAME

RAST

See:  Allergen Multiple Screen*
         Allergen Single*


TEST NAME

RBC SPINAL FLUID (CSF)

See:  Cell Count CSF


TEST NAME

RED CELL COUNT

See:    CBC
          CBC/Manual Diff
          Cell Count Body Fluid  
          Cell Count CSF


TEST NAME

RED CELL FRAGILITY*

MERCY TEST NAME

MISC GENERAL LAB

MERCY LAB CODE

CMIS

Comment:

Test can only be drawn Monday-Thursday. Enter test name on comment line.

Specimen:

5.0 ml EDTA whole blood from purple top tube.  Refrigerate immediately after collection. Draw 5 ml normal patient control from a normal unrelated person at the same time. Indicate sex of the person drawn for the control on the tube label.

Cause for rejection: Specimens CANNOT BE FROZEN.
Processing:

Label control vial clearly,” NORMAL CONTROL" on the outer most label. Sample must arrive at Mayo within 72 hours of collection.  Send refrigerated to Mayo. Mayo # 9064 OSMOTIC FRAGILITY, ERYTHROCYTES.

Performed:    2 days.  Test set up Monday through Friday.
Reference value: Included with test results
Method: Osmotic Lysis
CPT Code:  85557

TEST NAME

RED CELL INDICES

See:  CBC


TEST NAME

RED CELL TAG STUDY

Contact Nuclear Medicine in Radiology.


POWERCHART NAME

REDUCING SUBSTANCE FECES

MERCY TEST NAME

REDUCG SUBS FECES 

MERCY LAB CODE

RS

Includes:   pH feces and clinitest testing.
Specimen: 

Fresh stool specimen (2‑5 ML minimum).  Deliver specimen to Lab within 4 hours of collection. Refrigerate the specimen if testing is delayed after collection.

Performed:  Within 8 hours of receipt.
Reference value: Fecal pH: 7.0 - 7.5
Clinitest: negative to trace
Method: Copper reduction (Benedicts)  
CPT Code: 81002

TEST NAME

REDUCING SUBSTANCES URINE

See:  Urine Dipstick  
(Indicate Reducing Substances under comment field)


POWERCHART NAME

RENAL FUNCTION PANEL

MERCY TEST NAME

RENAL FUNCTION PANEL

MERCY LAB CODE

RPNL

Includes:

Albumin       Anion Gap          BUN            Bun/Creatinine Ratio
Calcium        CO2                 Chloride        Creatinine 
Glucose       Phosphorus        Potassium     Sodium  

Specimen: 1 ml lithium heparin plasma from a PST tube.  Refrigerated.
Performed:    Within 8 hours of receipt.  Available STAT.
Normal Values: See individual test entry.
Method: See individual test entry.
CPT Code: 80069

TEST NAME

RENAL PANEL

See: Renal Function Panel  


POWERCHART NAME

RENIN LEVEL

MERCY TEST NAME

RENIN ACTIVITY*

MERCY LAB CODE

RNN

Comment: 

There can be 2 types of specimens drawn. Please check orders carefully as there are different requirements for each specimen type.

Non-venous specimens:  Schedule with Radiology and indicate in the comment field if specimen is to be other than venous collection. Consult Lab for patient preparation. 

Venous specimens:  Enter in comment field:  venous specimen. Consult lab for patient preparation.

Specimen:

Non-venous:  Lab is to draw in conjunction with radiology procedure.  Need 2.5 ml plasma from pre-chilled purple top tubes. Draw blood with chilled syringe, place in chilled tube, mix immediately and place in an ice water bath until thoroughly chilled.

Venous:  Need 2.5 ml plasma from pre-chilled purple top tubes. Draw with a vacutainer. 
Mix immediately and place in an ice water bath until thoroughly chilled.

Processing:

Centrifuge in refrigerated centrifuge. Separate immediately and freeze. Indicate specimen source on specimen tube and on order form. Send frozen to Mayo.  Mayo # 8060.

Performed:  2 days.  Test set up Monday through Friday.
Reference value:  Included with test results 
Method:  Radioimmunoassay (RIA)
CPT Code: 84244

TEST NAME

RESPIRATORY SYNCYTIAL VIRUS ANTIGEN

See:  Microbiology Section: 
Direct Methods for Rapid Detection.
In Pt Micro  / Regional Pt Micro


POWERCHART NAME

RETICULOCYTE COUNT (% AND #)

MERCY TEST NAME

RETICULOCYTE CNT

MERCY LAB CODE

RETIC

Specimen: 

1 ml whole blood from purple top tube or capillary specimen. Specimen stable 72 hours when refrigerated.

Performed:  Within 8 hours of receipt.  Available stat.
Reference value:

Retic %:  0.54 – 2.59
Retic Absolute:  0.019 – 0.110 m/mcl

Method:  New Methylene Blue/Coulter LH 750
CPT Code: 85046

TEST NAME

RH IMMUNE GLOBULIN LOT#

See:  RHIG Lot#


TEST NAME

RH IMMUNE GLOBULIN WORKUP

See:  RHIG Workup


TEST NAME

RH TYPE

See:  ABO Group/Rh Type


TEST NAME

RHEUMATOID ARTHRITIS FACTOR

See:  Latex RA


POWERCHART NAME

RHIG ELIGIBILITY STUDIES

MERCY TEST NAME

RHIG ADM TESTS

MERCY LAB CODE

 RHEL

Comment: 

Ordered by Lab personnel only. Will be ordered by Lab when RH IMMUNE GLOBULIN WORKUP indicates eligibility for RH Immune Globulin.  

Includes: ABO/RH, Antibody Screen, and Fetal/Maternal Screen on the mother.
Specimen:   One 6 ml Pink top tube.
Cause for rejection: Specimens collected prior to delivery are not satisfactory for the Fetal/Maternal Screen.
Performed: Within 8 hours of receipt.
Method: Serological
CPT Code:

86900 ABO+
86901 RH+
86850 Antibody Sc
85461 Fetal/Mat Screen+


TEST NAME

RHIG EVALUATION

See:  RHIG Administration Tests


POWERCHART NAME

RHIG LOT NUMBER

MERCY TEST NAME

RHIG LOT #

MERCY LAB CODE

RHG

Comment:  Please call the Lab when order is placed. 

NOTE:
If the mother's type is unknown, an ABO Group/Rh Type should be ordered prior to ordering RHIG. Order in the following conditions on Rh negative mothers: Per physician's order when the RHIG injection only is ordered prenatally or following miscarriage, amniocentesis, or after any event which may allow fetal cells to enter the mother's circulation. If the physician also orders an antibody screen, order Antibody Screen.
Specimen:  None necessary
Performed:  Within 8 hours of receipt.
CPT Code: NA

POWERCHART NAME

RHIG STUDIES

MERCY TEST NAME

RHIG WORKUP

MERCY LAB CODE

RHGW

Comment: Order on the mother after delivery.  A Cord Blood Routine must be ordered on the neonate.
Includes: 

ABO/RH and  Direct Coomb's (DAT) results for Cord Blood Routine on the neonate.
If mother is eligible for Rh immune globulin injection, Lab will order RHIG Evaluation.

Specimen: None.
Performed: Within 8 hours of receipt.
Method:  Decisional to establish eligibility of mother to receive RHIG.
CPT Code: NA

TEST NAME

RHOGAM

See: RHIG Lot#   (For the Rh Immune Globulin injection only.)


TEST NAME

RIBA HCV*

See: Hepatitis C Virus, RIBA with Bands


TEST NAME

ROTAVIRUS ANTIGEN

See:  Microbiology Section
Direct Methods for Rapid Detection
In Pt Micro  / Regional Pt Micro


POWERCHART NAME

RPR - NO LONGER PERFORMED AT MERCY SEE SYPHL

See:  SYPHL

 

TEST NAME

RSV

See:  Microbiology Section
Direct Methods for Rapid Detection
          In Pt Micro  / Regional Pt Micro


POWERCHART NAME

RUBELLA ANTIBODY IgG

MERCY TEST NAME

RUBELLA IMM

MERCY LAB CODE

RBLA

Comment:   Test determines immune status only.  Included in a Prenatal Profile.
Specimen:   0.5 ml serum from a SST tube.  Stable 48 hours then freeze specimen.
Cause for rejection: Grossly hemolyzed or icteric serum. Cord blood, neonatal, plasma, cadaver or body fluid specimens other than serum. 
Processing: Freeze specimen. If Prenatal Profile – Rubella and Syphilis must be in one aliquot tube.
Performed: Tuesday and Friday 0800 cutoff
Method:   ELISA Microwell format
CPT Code:  86762

POWERCHART NAME

RUBEOLA ANTIBODY IgG (MEASLES)

MERCY TEST NAME

RUBEOLA IMM

MERCY LAB CODE

MMEAS

Comment: This test is useful for determination of post-immunization immune response for previous infection with Rubeola (measles) virus.
Specimen: 0.5 ml serum from a SST tube. Refrigerate specimen unless greater then 48 hours old before testing, then freeze specimen.
Cause for rejection: Grossly hemolyzed or icteric serum
Processing:  Refrigerate. >48 hours – freeze specimen
Performed:  Friday 0800 cutoff
Method: Enzyme Immunoassay
CPT Code: 86765