Term
|
Definition
Ordering
Collecting
Transporting
Storing
Processing |
|
|
Term
| % of errors due to preanalytical |
|
Definition
|
|
Term
| % of errors due to analytical |
|
Definition
|
|
Term
| % of errors due to postanalytical |
|
Definition
|
|
Term
|
Definition
Instrument set-up
QC
Testing
Maintenance (PM)
Personnel |
|
|
Term
|
Definition
Interpreting
Recording
Reporting
Stockyard Storage |
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|
Term
| 11 Patient Related Preanalytical Variables |
|
Definition
Diet
Exercise
Stress and Anxiety
Posture
Drugs, diuretics, alcohol, smoking, age, gender, and race |
|
|
Term
| Diet NR are typically what type of ranges? |
|
Definition
|
|
Term
| What substances are often associated with diet as a preanayltical variable? |
|
Definition
Glucose, insulin
Triglycerides
Gastrin
BUN (urea) |
|
|
Term
| As you exercise what happens to your lactic acid? |
|
Definition
|
|
Term
| As you exercise what happens to your pH? |
|
Definition
|
|
Term
| As you exercise what happens to your muscle enzymes (CK, LD, AST)? |
|
Definition
|
|
Term
| Hyperventilation may cause ____ ___ and secretion of _________ _______ |
|
Definition
Respiratory alkalosis
Adrenal hormones |
|
|
Term
| Prolonged crying elevates what type of count? |
|
Definition
|
|
Term
| From lying down to sitting or standing, the position change can cause water flow from the IV space to go where? |
|
Definition
|
|
Term
| Posture results in decreased _____ _____ and an increase in ______ serum components |
|
Definition
|
|
Term
| 6 Collection-Related Preanalytical variables |
|
Definition
Tourniquet
Circadian Variation
Anticoagulants and Separator Gels
Hemolysis
Intravenous Infusions |
|
|
Term
| What will prolonged application of a Tourniquet cause? |
|
Definition
|
|
Term
| What substances are most affected by extended tourniquet usage? |
|
Definition
Albumin
Albumin-bound substances |
|
|
Term
| What are most affected by Circadian Variation? |
|
Definition
|
|
Term
| What does Standard Order of Draw reduce the risk of? |
|
Definition
| An anticoagulant in one tube contaminating blood collected in the following tube |
|
|
Term
| Effects of EDTA contamination: what will decrease |
|
Definition
| Calcium (Ca) & Magnesium (Mg) |
|
|
Term
| Effects of EDTA contamination: what will increase |
|
Definition
|
|
Term
| What is the correct order of draw to avoid EDTA contamination? |
|
Definition
Sterile
Light Blue
Red
SST/PST
Green
Lavender
Gray |
|
|
Term
What will all of the following potentially cause?
Traumatic venipuncture, alcohol swabs, shaking, bad pneumatic tube system |
|
Definition
|
|
Term
True or False:
It does not require visible hemolysis to affect tests |
|
Definition
|
|
Term
| It does not require visible hemolysis to affect tests - only what? |
|
Definition
| prolonged serum/cell contact |
|
|
Term
| What substances are most affected by Hemolysis? |
|
Definition
Potassium
Iron
Varying enzymes |
|
|
Term
| If a tube that has hemolysis comes to the lab, what should you do? |
|
Definition
|
|
Term
| With intravenous infusions where should you collect from? |
|
Definition
| An alternate site if possible |
|
|
Term
| For Intravenous Infusions if necessary how long should you turn off the IV for? |
|
Definition
|
|
Term
| For Intravenous Infusions when collecting and the IV has been turned off where should you collect from? |
|
Definition
| Below the IV, preferably in different vein |
|
|
Term
| How many mL should you discard after collecting a sample from a patient who is undergoing Intravenous Infusions? |
|
Definition
|
|
Term
|
Definition
|
|
Term
|
Definition
Sodium
Chloride
Proteins
Potassium |
|
|
Term
| TPN (parenteral nutrition): |
|
Definition
Elevated Lipids
Glucose
Potassium |
|
|
Term
| How many minutes should you allow for a clot to form at room temperature |
|
Definition
|
|
Term
| With a clot activator how many minutes should you allow for a clot to form? |
|
Definition
|
|
Term
True or False:
Green tops / PSTs do not need to clot at all |
|
Definition
|
|
Term
| If serum is separated too quickly, what may still be present? |
|
Definition
|
|
Term
| If serum is not removed in a timely fashion, what may begin to metabolize glucose? |
|
Definition
|
|
Term
True or False:
Refrigeration or freezing kills LD |
|
Definition
|
|
Term
True or False:
Exposure to light decreases bilirubin |
|
Definition
|
|
Term
| Prolonged storage causes _____ leakage from RBCs |
|
Definition
|
|
Term
Given the Storage Situation Name the Most Affected Substance:
Freezing |
|
Definition
|
|
Term
Given the Storage Situation Name the Most Affected Substance:
Light |
|
Definition
|
|
Term
Given the Storage Situation Name the Most Affected Substance:
Evaporation |
|
Definition
|
|
Term
Given the Storage Situation Name the Most Affected Substance:
Cell Metabolism |
|
Definition
|
|
Term
Given the Storage Situation Name the Most Affected Substance:
Older Samples |
|
Definition
|
|
Term
| What is the term used to describe an elevation of proteins when a patient changes from a lying to a sitting or standing position? |
|
Definition
|
|
Term
| What is the most common cause of postanalytical errors? |
|
Definition
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