Define clinical tests purpose
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| BUN | Blood Urea Nitrogen By product of protein metabolism results from the detoxification of Ammonia | All tissues which break down protein or amino acids-detoxification of ammonia occurs by means of a liver enzyme | passively filtered by the kidney. Produced in higher concentrations than Creatinine, therefore changes in levels occur sooner than creatinine - hence use of BUN/Creatinine ratio | High-excess protein degradation Inefficient filtering Hemoconcentration low - not enough protein intake(muscle mass however can substitute for source of protein) more commonly liver disease causing loss of enzyme that makes it. Too effnt filtg Dil | High:Atkins diet,Kidney disease that impacts filtration rate,Dehydration,GI bleeding,Heart failure,Shock. Liver failure,pregnancy,Any event with increased renal filtration
overhydration
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| CREAT(Creatinine) | (blank) | (blank) | (blank) | (blank) | (blank)
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| Glucose (sugar) | (blank) | (blank) | (blank) | (blank) | (blank)
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| AST | (blank) | (blank) | (blank) | (blank) | (blank)
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| ALT | (blank) | (blank) | (blank) | (blank) | (blank)
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| CK (CPK) | (blank) | (blank) | (blank) | (blank) | (blank)
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| Myoglobin | (blank) | (blank) | (blank) | (blank) | (blank)
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| Troponins | Part of the structure of muscle fibers in heart and other muscle | Muscle/heart Comes in several flavors I, T | degraded by proteases | High- Tissue damage resulting in loss of membrane integrity-early event in diagnosisng MI | Muscle Damage
Crush injuries
MI-
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| CBC | Complete Blood Cell Count, includes a whole lot of measurements which will be discussed later | Bone marrow in response to environmental ( internal environment) conditions | Reticuloendothelial system ( macrophages and spleen) | See individual components (i.e WBC) | (blank)intentionally
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| WBC | WBC | (blank) | (blank) | (blank) | (blank)
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| RBC | RBC | (blank) | (blank) | (blank) | (blank)
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| HGB | HGB | respiratory pigment in red cells, iron, porphyrin ring and globin chains- made in red cells | Reticuloendothelial system - hemoglobin is processed to bilirubin which is conjugated ( made soluble by the liver)-excreted as bile and bilerubin derivatives | (blank)intentionally | (blank)intentionally
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| HCT | HCT | also known as PCV - cellular mass in blood described as a percentage | reflects most closely the number and mass of RBCs so see RBC for meaning | intentionally blank | intentionally blank
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| Platelets | Platelets | Cells responsible for orchestrating coagulation, inflammation and tissue repair- short-lived | Reticuloendothelial system - dismantled by Macs, used up in routine mainetenance and repair | intentionally blank | intentionally blank
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| DIFF | DIFF | intentionally blank | intentionally blank | Balance of different cells, reflect both production and destruction of each subtype of white cell independently | intentionally blank
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| Protime | Laboratory measure of the functional integrity of the Extrinsic coagulation system | Liver | degraded by plasma proteases | Marked decrease or functional loss of integrity of any or all of the following VII X, II, I | hereditary or acquired coagulation cascade defects
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| PTT | Laboratory measure of the functional integrity of the Intrinsic Coagulation system | Liver | degraded by plasma proteases | Marked decrease or functional loss of integrity of any or all of the following PreKallekrein, High Molecular Weigth Kininogen, XII, XI, IX,VIII, X, II,I | hereditary or acquired coagulation defects
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| Blood Gases | PH Oxygen CO2 | intentionally blank | Controlled by Lungs and Kidney Metabolic and Respiratory Events by means of plasma, red cell and protein buffer systems, active transport across the renal tubular structures and ventilatory rate. | Alterations in blood flow, composition, Renal function and respirator function as well as environmental conditions. | TNTL
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