Clinicians
Explore each category below to find essential details,
ensuring we deliver fast, accurate results to every clinician.
The Pathlab Portal allows clinicians to retrieve final reports timely.
Important information on the specimen handling to ensure that we are able to process the samples accurately and timely.
The laboratory will immediately contact the attending doctor through all the means possible and convey the results which fall outside the critical limits. This will ensure that the patient gets immediate care and treatment.
Refer to our service catalogue for more information on the test listings available.
Critical Values
Biochemistry
Parameter
Low Limit
High Limit
Conventional Unit
(mg/dL)
SI Unit
(mmol/L)
Conventional Unit
(mg/dL)
SI Unit
(mmol/L)
Calcium
< 7
< 1.75
> 13
> 3.25
Glucose
< 45
< 2.5
> 450
> 25.0
​Potassium
-
< 2.5
-
> 6.0
Sodium
-
< 120
-
> 160
​Creatinine Kinase
-
-
-
> 1000 U/L
Creatinine Kinase - MB
-
-
-
> 5.0 ng/mL
Dengue IgM
Positive
Dengue NS1
Positive
Haematology
Parameter
Low Limit
High Limit
White Blood Cells
< 2 x 10 /L
9
> 25 x 10 /L
9
Haemoglobin
< 6.0 g/dL
> 20.0 g/dL
Platelet Count
< 50 x 10 /L
9
> 800 x 10 /L
9
Prothrombin Time
None
> 40 s
Activated Partial Thromboplastin Time
None
> 90 s
INR
None
> 5.0
Presence of blast cells
Peripheral Blood Film
Presence of Malaria and/or other blood parasites
Specimen Handling
General Specimen Preparation
​
-
Ensure the correct collection containers are used and an adequate amount of specimens is collected.
-
Do not use expired collection containers or transport media for specimen collection.
-
Ensure all tubes, containers, and request forms are properly labelled with at least 2 identifiers.
-
All tubes and containers must be tightly and properly capped to prevent spillage and contamination.
-
Blood urine specimens for glucose (except in fluoride tube), electrolytes, calcium, phosphate, bicarbonate, CPK, LDH, SGOT, alkaline phosphatase (ALP), PT/PTT, and urine FEME cannot be kept overnight.
-
Please refer to the Specimen Collection Guidelines section of our Service Catalogue for a thorough explanation of the appropriate procedures for collecting all types of specimens.
Request Forms
​
-
A request form with relevant patient data must accompany each specimen. Mandatory information on the request form includes:
-
Name & Complete NRIC/FIN or Passport Number
-
Nationality
-
Date of Birth & Gender
-
Name of Clinic & Ordering Doctor
-
Type of Specimen
-
Test(s) Required
-
Date & Time of Collection
-
Other Relevant Information (e.g., fasting / medication)
Specimen Packaging
​
-
Use one zip-lock plastic bag for one patient.
-
Multiple specimens per patient can be put in a bigger bag after using separate small bags for the urine or stool specimens.
-
Ensure the specimen containers are tightly capped and properly labelled (at least 2 identifiers).
-
Seal the bag properly at the top using the zip or staple.
-
Slot the completed request form into the kangaroo pouch attached to the ziplock bag.
-
Note: Do not put the request form into the bag.
-
Specimen Collection
​
To enquire or make a request for specimen collection, please call 6742 9011.
​
Collection Hours:
Monday – Friday: 9:00 a.m. to 5:00 p.m. and 7:30 p.m. to 9:00 p.m.
Saturday: 9:00 a.m. to 1:00 p.m.
Sunday: 9:00 a.m. to 1:00 p.m.
Public Holiday: Closed
Rejection Policy
​
Pathlab reserves the right to reject suboptimal specimens if they are assessed to be unacceptable for testing, such as but not limited to:
-
Unlabelled specimen
-
Contaminated specimen
-
Incorrectly labelled specimen
-
Insufficient sample volume
-
Incorrect collection container used
-
Broken/leaking container
