Table of Contents
- 1 Which specimens need to be chilled?
- 2 Which specimen requires chilling during transfer to the laboratory?
- 3 What blood test is frozen?
- 4 What is the purpose of cooling specimens?
- 5 What happens when a patient with cold Agglutinins body temperature falls?
- 6 Is Cryoglobulinemia an autoimmune disease?
- 7 What should be the temperature of a specimen after collection?
- 8 What is the purpose of specimen collection guidelines?
Which specimens need to be chilled?
Examples of specimens that need to be chilled or transported on ice include adrenocorticotropic hormone (ACTH), angiotensin converting enzyme (ACE), acetone, ammonia, catecholamines, free fatty acids, lactic acid, pyruvate and renin.
What does chilling a sample prevent?
Chilling a specimen slows down metabolic processes and keeps analytes stable during transport and handling.
Which specimen requires chilling during transfer to the laboratory?
PhlebFinal
| Question | Answer |
|---|---|
| Blood cultures collection invovles | an aerobic and anaerobic sample |
| Which specimen requires chilling during transfer to the lab? | ammonia |
| It is neccesary for a patient to fast for 12 hours befores | glocose tolerance test |
| Specimens that are sensitive to light include | vitamin A, beta-carotene, and bilirubin |
What does cooling a blood specimen cause?
What should be considered when pneumatic tube systems are used for transporting specimens? Cooling a blood specimen causes what? slowing of metabolic processes. How should the specimen be transported if blood gases can be analyzed within 30 min from the time of the specimen collection?
What blood test is frozen?
Description. Laboratory testing for cryoglobulin is based on the fact that cryoglobulin clumps when cooled and dissolves when warmed. The test is done on a person’s serum (the yellow liquid part of blood that separates from the cells after the blood clots).
Why does ammonia need ice?
Storage/transport. Ammonia concentrations increase rapidly in blood after venepuncture so samples must be immediately placed on ice after labelling and sent to the laboratory within 20 minutes of venepuncture. Inform the laboratory before the sample is taken so that analysis can be performed without delay.
What is the purpose of cooling specimens?
Some tests require that blood specimens be cooled in ice water, placed in warm water, or protected from light immediately following the venipuncture in order to prevent metabolic processes which may cause alteration of some test values.
Why do we need to chill specimens for ammonia test?
Ammonia is stable in plasma for a maximum of 3 hours under these conditions. If sample separation from cells cannot be achieved, the sample should be kept on ice until submission to the laboratory, however ammonia will be less accurate.
What happens when a patient with cold Agglutinins body temperature falls?
Cold agglutinins are particular cold-reactive antibodies that react with red blood cells when the blood temperature drops below normal body temperature causing increased blood viscosity and red blood cell clumping.
What does ICE blood test mean?
The system allows you to see pathology and radiology results held by the hospital, including ones you have not requested, and means the laboratory team can see all the information it needs. ICE also keeps an electronic record in a patient’s notes so that there is full accountability.
Is Cryoglobulinemia an autoimmune disease?
Mixed cryoglobulinemia is believed to be an immune-mediated disorder (in which the immune system response to chronic infection causes damage to various tissues) or an autoimmune disorder (in which the immune system mistakenly attacks the body’s own tissue).
What blood tests need to be on ice?
To ensure accurate results of such specimens, transport them in ice slurry. i.e. ACTH, Acetone, Angiostensin Converting Enzyme (ACE), Blood Ammonia, Catecholamines, Free Fatty Acids, Lactic Acid, Pyruvate, Renin Activity.
What should be the temperature of a specimen after collection?
If specimens will be examined within 48 hours after collection, keep specimen at 4ºC and ship on wet ice or refrigerant gel-packs, otherwise store frozen at ≤-70ºC and ship on dry ice. Avoid freezing and thawing specimens. Viability of some pathogens ( e.g.
What’s the best way to collect a specimen?
Collect the specimens in sterile vials. Label each specimen container with the patients name, ID number, specimen type, and the date collected. If specimens will be examined within 48 hours after collection, keep specimen at 4ºC and ship on wet ice or refrigerant gel-packs, otherwise store frozen at ≤-70ºC and ship on dry ice.
What is the purpose of specimen collection guidelines?
SPECIMEN COLLECTION GUIDELINES Purpose of this document The purpose of this document is to provide general specimen collection guidelines for healthcare providers and public health staff during a respiratory disease outbreak when the pathogen is unknown.