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17 Cards in this Set
- Front
- Back
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What are the general transport guidelines?
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1. Samples must be labeled
(Patient name, Medical record #/birth, Date, time, your initials) 2.Samples placed in leak-proof bag (biohazard symbol, plus pouch for paper) 3. Samples remain upright (reduce contamination from stopper, promote clot formation w/o additive present, reduce aerosol forming) 4. Sample transported to off-site by mail/courier must meet DOT regulations. |
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What are regulation made in the transport of samples to off-site location by mail/courier?
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1. primary container wrapped in absorbent material and put in 2nd containter
2. 2nd container ---> shipping container 3. no extreme temp changes. (add dry ice) 4. Biohazard symbol on shipping container plus name of agent. |
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What is the corrective action for a plebotomist after collection?
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The corrective action is to redraw
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Factor that affect sample integrity.
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Specimen integrity affected by:
- Method of transport - Timing delays - Temperature - Movement/agitation - Exposure to light - Centrifugation methods |
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What is the time limit for routine samples?
Why? |
Deliver sample within 45 minutes of being drawn.
CLSI recommends no more than 2 hours pass b/w collection and separation of cells from plasma/serum. |
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What is the time limit for STAT samples?
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A “STAT” Request
- In cases of emergency - Deliver immediately after draw - Document the request appropriately |
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What are temperature requirements for most samples?
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Most samples should be kept at room temperature
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What are examples of samples that need to be warmed (37 C)?
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Cold agglutinins and Cryofibrinogen
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What are examples of samples that need to be chilled (in slurry)?
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1.Blood gases
2. Lactic acid 3. Ionized calcium 4. Ammonia 5. Glucagon 6. Gastrin |
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What are examples of specimens that are affected by light?
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Specimens that are light sensitive. They break down by light exposure.
- Bilirubin - Vitamin B12 - Carotene |
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What are some common sample delivery methods?
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Common delivery methods:
- Hand carry - Hospital transportation department - Pneumatic tube system - Automated robot - Commercial courier |
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What are the tasks of central processing?
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The specimens are:
- identified - Logged in - sorted by department - Centrifuged - Aliquot preparation |
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What are centrifugation used for in central processing?
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Centrifugation
- Centrifugal force separates cells from plasma/serum - serum must clot completely prior to centrifugation - Complete clotting takes 30-45 min. - Faster with clot activator (15min) |
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What are the criteria for specimen rejection?
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-Unlabeled specimens
- QNS specimens - Hemolyzed specimens - Incorrect anticoagulant for test - Outdated tubes - Improper handling (e.g. expose to UV light) - Contaminated specimen (e.g. IV fluid) - Serum not removed from cell within 2 hrs of collection. |
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What info are on requisition forms?
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-- Patient identification (name, registration or identification number, location)
- Patient’s gender, date of birth or age - Name of physician or legally authorized person ordering the test - Tests requested - Time and date of specimen collection - Source of specimen - Other pertinent clinical information when appropriate |
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What happens when requisitions is missing information?
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Do not process the sample.
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What is the corrective action log?
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- Problems must be documented
- Corrective actions implemented and monitored - Process review |
