ARUP's Laboratory Test Directory

Chromosome Analysis, Peripheral Blood : 2002289
[ image for: Time Sensitive]
Time Sensitive
[ image for: Patient History for Pediatric/Adult Cytogenetic (Chromosome) Studies]
Patient History for Pediatric/Adult Cytogenetic (Chromosome) Studies


Mnemonic: CHR PB

Methodology: Giemsa Band
Performed: Sun-Sat
Reported: 3-10 days
Specimen Required: Collect: Green (sodium heparin).

Specimen Preparation: Do not freeze or expose to extreme temperatures. Transport 5 mL whole blood. (Min: 2 mL) Specimen and completed test request form, including clinical indication, must be received within 48 hours of collection.

Storage/Transport Temperature: Room temperature.

Remarks: This test must be ordered using Cytogenetic test request form #43097 or through your ARUP interface. Please submit the Patient History for Cytogenetic (Chromosome) Studies form with the electronic packing list (available at http://www.aruplab.com/genetics/forms.php).

Unacceptable Conditions: Frozen specimens. Clotted specimens.

Stability (collection to initiation of testing): Ambient: 48 hours; Refrigerated: 48 hours; Frozen: Unacceptable
Reference Interval:
By report
Interpretive Data:  Counseling and informed consent are recommended for genetic testing. Consent forms are available online at www.aruplab.com.
Note: These studies involve culturing of living cells; therefore, turnaround times given represent average times which are subject to multiple variables. After specimen receipt, results are generally available in an average of 10 days. 

A processing fee will be charged if this procedure is canceled, at the client's request, after the test has been set up, or if the specimen integrity is inadequate to allow culture growth.
CPT Code(s): 88269; 88230; 88291
Cross References: 45,X, 45X, abortion, ambiguous genitalia, cardiac defect, DD, developmental delay, Down syndrome, Down Syndrome (Chromosome Analysis, Peripheral Blood), Down’s syndrome, Downs syndrome, dysmorphic features, Edward’s, Edwards, heart defect, ID, infertility, intellectual disability, inversion, karyotype, Karyotype (Chromosome Analysis, Peripheral Blood), karyotypes, Kleinfelter syndrome, Klienfelter syndrome, Klinefelter syndrome, MCA, mental retardation, miscarriage, missed abortion, monosomy, MR, multiple congenital abnormalities, multiple congenital anomalies, Pateau, pregnancy loss, SAB, sex chromosome, T13, T18, T21, translocation, trisomy, trisomy 13, trisomy 18, trisomy 21, Turner syndrome, Turner’s syndrome, Turners syndrome, XO, XXY syndrome, XYY syndrome