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Test Code Newborn Sc State Newborn Screen

Important Note

The State Newborn Screen includes "expanded NBS" by tandem mass spectrometry and tests for the conditions listed on the requistion link.  Blood collection cards are supplied by the Lab or by unit coordinators in the inpatient floors.

Method is affected by diet, moisture absorbed by the card, improper collection, or being placed in a plastic bag. The sample will be automatically rejected if it is QNS, if a QNS sample has been "added to" (filled from different blood draws) or if it is in a plastic bag. A Children's Lab requisition must accompany the sample.

Clinical System Name

State Newborn Screen

Synonyms

CAH Screen
Congen. Adrenal Hyperplas. Scrn
Expanded Newborn Screening
Extended Newborn Screening
Guthrie Test
Newborn Metabolic Screen
NEWBORN SC
Newborn Screen, WA State
Phenylketonuria Screen - Blood
PKU Newborn Screen
PKU Screen - Blood

 

 

Sample Requirements

Specimen: Whole blood

Container(s):Dried Blood Spot Card

Preferred Vol: 5 full circles

Minimum Vol:  4 full circles

 

Note: Completely fill circles with blood. Complete ALL information on the card. Don't use a card with the name/address of another hospital! Send to the Lab in the paper envelope provided.

Processing Instructions

Reject due to:  if QNS or if a QNS sample has been "added to" (filled from different blood draws) or if it is in a plastic bag.

Spin: N

Aliquot: N

Temp: Room temp

 

Storage location:  Allow the PKU card to air dry on pillar next to the aliquot station. Put dried sample and Cerner labels in the send outs box on the side of the CPA refrigerator.

 

Off-site collection: Transport at room temp.

Stability

Specimen Type Temperature Time
  Room temp

 

  Refrigerated  
  Frozen

 

 

Availability

STAT Performed TAT
N Daily 14 d

 

Performing Laboratory

Washington State Lab - Newborn Screening Program

Department

Department:  

Washington State Lab - Newborn Screening Program

1610 NE 150th Street
Shoreline, WA 98155

 

Phone Number

(206) 418-5410

 

 

Reference Range

 

PKU Screen Normal
Thyroid Screen Normal
CAH Screen Normal
Hemoglobin Screen Normal
Biotinidase Screen Normal
Galactosemia Screen Normal
Cystic Fibrosis Screen Normal
Amino Acid Profile Normal
Organic Acid Profile Normal
Fatty Acid Profile Normal

PKU will be quantitated if screen is abnormal. Abnormal thyroid or CAH screens may be reported as "borderline" or "presumptive positive." An abnormal hemoglobin screen identifies hemoglobins present.
 

Methodology

Method: Shell Vial, Tandem Mass Spectrometry

Analytical Volume: None specified

Limitations:

Send Out Instructions

 

Reference Test Name: None specified
Reference Test Number:

None specified

Instructions:

Cards are sent out Monday through Friday at 0900 via Delivery Express courier service.  Cards can also be mailed. Do not use cards that have any other hospital's name as sender.