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Lab Tests
| Question | Answer |
|---|---|
| what four things are looked at in an arterial blood gas test | pH, CO2, O2, and bicarbonate |
| what is ETOH? | ethanol blood test |
| what is aPTT? | activated partial thromboplastin time |
| what is the difference between PTT and aPTT? | aPTT contains an activator that speeds up clotting time |
| what tube is aPTT drawn in? | light blue |
| culture and sensitivity would go to which lab? | microbiology |
| who usually draws for an ABG test? | nurse, physician, or respiratory therapist |
| what is a group of tests called? | profiles or panels |
| what is an H. Pylori test? | 48 hour breath test |
| which test has priority? | STAT |
| Which test does not require fasting? | CBC |
| Septicemia can be detected by what type of test? | Blood culture tests will indicate the presence of septicemia. |
| D-dimer tests are used to assess | blood clotting issues. |
| HbA1c is used to diagnose and monitor | diabetic patients |
| kidney function tests assess | how effectively kidney function is |
| Which test requires the collection of both blood and urine at specific intervals? | Glucose tolerance testing requires the collection of both blood and urine at defined intervals |
| which of the following is a test used to monitor heparin levels? | ACT |
| Which of the following test can be conducted using either serum or plasma specimens? | mono-test |
| This substance can interfere with coagulation tests by activating the extrinsic coagulation pathway: | tissue thromboplastin |
| Which of the following is used as an anticoagulant for ABG specimens? | Heparin |
| One of the reasons that serum is more often used for testing than plasma is that | serum contains more antigens |
| What color tube does an electrolyte panel go in? | Green |
| What tube contains Thrombin for STAT serum testing? | Orange or Grey/Yellow Tiger Top |
| ESR tests in what color tube? | lavender tube |
| what color tube would a test for uric acid go in and where would it be sent? | uric acid would be drawn in a SST and sent to the chemistry lab |
| what color tube would a test for A1C go in and where would it be sent? | A1C (hemoglobin A1C) is drawn in a lavender top tube and sent to the chemistry lab |
| What test is used to evaluate extrinsic pathway? | PT/INR |
| pt/inr | monitors anticoagulant therapy (Coumadin, Warfarin, and Heparin) |
| what test is used to evaluate intrinsic pathway? | PTT |
| Lipid panel should be drawn in what tube when a patient is fasting? | SST tube |
| What is the trough? | Lowest chemical blood level |
| What is the peak? | Highest chemical blood level |
| What common test is drawn without stasis? | Lactic acid |
| Septicemia is detected in what? | Blood cultures |
| Blood culture is ordered as two | Anaerobic and aerobic |
| Tests for light blue top | PT, PTT, AND aPTT |
| Tests for red top | Clear the line, clotting (30-60 min), serum pregnancy test |
| Tests for gold/tiger (*SST) | BMP, CMP, serum pregnancy test, and c reactive protein test |
| Tests for light green (*PST) | LYTES and hCG |
| Tests for dark green | ammonia |
| Tests for lavender | C reactive protein, ESR (full tube required), CBC, sickle cell screening |
| Tests for royal blue w red lavender stripe | Lead poisoning, heavy metal toxicology |
| Tests for pink | Molecular diagnostics, testing of viral loads, type and screen ratio, and cross match |
| Tests for grey | Ethanol levels, lactic acid, OGTT |
| what is step 1 for an H. pylori test? | Up to 2 weeks before test, Pt needs to stop taking antibiotics, bismuth medicines & proton pump inhibitors (PPIs) |
| what is step 2 for an H. pylori test? | During the test, Pt will swallow a special substance that has urea. (Urea is a waste product that the body produces as it breaks down protein. Urea used in the test has been made harmlessly radioactive. |
| what is step 3 for an H. pylori test? | If H. Pylori are present, bacteria convert the urea into carbon dioxide >detected & recorded in Pts exhaled breath after 10 minutes |
| what is step 4 for an H. pylori test? | Pts should not talk or consume anything (i.e. eat or drink) after/between the baseline breath test & final breath test. |
| what is the purpose of the H. pylori test? | This test can identify almost all people who have H. Pylori - can also be used to check that the infection has been fully treated |
| What tests are chain of custody? | All drug tests, blood alcohol, or any other tests that have medicolegal significance should be accompanied by a chain-of-custody. |
| What does a PKU test test for? | |
| Common urine tests: | routine urinalysis c&s, cytology, drug screening, pregnancy test |
Created by:
phlebotomystudent1
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