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Lab Tests

QuestionAnswer
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
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