Notes in 08CardiacMarkers

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Published 07/30/2024 [Types of Myocardial Infarction]{{c1::Type 1}} MI: ST segment elevation MI (STEMI) and non-ST-segment elevation MI (NSTEMI)
Published 07/30/2024 [Types of Myocardial Infarction]{{c1::Type 2}} MI: Secondary to ischemic imbalance
Published 07/30/2024 Cell death may occur in a span of {{c1::6}} hours after coronary blockage
Published 07/30/2024 {{c1::AST/SGOT}} elevation will help you in clinching the diagnosis of AMI.
Published 07/30/2024 Aspartate Aminotransferase (AST) is located in the following:{{c1::Heart, Liver, Skeletal Muscle, pancreas, pulmonary circulation, kidneys , and RBCs}…
Published 07/30/2024 {{c1::Aspartate Aminotransferase (AST)::cardiac marker}} is used to evaluate hepatocellular disorders, skeletal muscle disorders, pulmonary emboli, an…
Published 07/30/2024 Hepatic marker enzymes include {{c1::alanine aminotransferase (ALT) and aspartate aminotransferase (AST)}}
Published 07/30/2024 Upper Limit of AST for different DiseasesViral hepatitis - Up to {{c1::100}} times
Published 07/30/2024 Upper Limit of AST for different Skeletal muscle disorders - Up to {{c1::8}} times
Published 07/30/2024 Upper Limit of AST for different Pulmonary emboli - Up to {{c1::3}} times
Published 07/30/2024 Following AMI, AST levels rise within {{c1::6-8}} hours, peak within {{c2::18-24}} hours, and return to normal within {{c3::4-5}} days
Published 07/30/2024 Analysis of {{c1::AST}} can be achieved by a coupled reaction involving {{c2::pyridoxal-5’ -phosphate (P-5’ -P)}} and {{c2::malate dehydrogenase (MDH)…
Published 07/30/2024 AST Levels are measured through a {{c1::de::de/in}}crease in absorbance
Published 07/30/2024 Specimen for measuring AST levels: {{c1::Serum or heparinized plasma free from hemolysis}}
Published 07/30/2024 Reference Ranges of AST in Adult male: <{{c1::35}} U/L
Published 07/30/2024 Reference Ranges of AST in Adult female: <{{c1::31}} U/L
Published 07/30/2024 Lactate Dehydrogenase is located in the following:{{c1::Heart, Liver, Skeletal Muscle, Kidneys, and RBCs}}
Published 07/30/2024 LD Isozymes are composed of {{c2::four::#}} subunits/tetramer (mainly polypeptide chains) derived from two types of polypeptides designated {{c1::M (m…
Published 07/30/2024 Lactate Dehydrogenase Isoenzymes Isozyme​Clinical Correlate​ ​{{c1::LD-1 and LD-2}}​• Acute myocardial infarction…
Published 07/30/2024 Lactate Dehydrogenase Isoenzymes Isozyme​Clinical Correlate​ ​{{c1::LD-3}}• Pulmonary Disorders• Pancreatitis• Lymphoc…
Published 07/30/2024 Lactate Dehydrogenase Isoenzymes Isozyme​Clinical Correlate​ ​{{c1::LD-4 and LD-5}}• Liver and skeletal muscle di…
Published 07/30/2024 Following AMI, LD levels rise within {{c1::8-12}} hours, peak within {{c2::24-48}} hours, and return to normal within {{c3::7-10}} days
Published 07/30/2024 In measuring LD, {{c1::lactate}} is the substrate that the LD converts to {{c1::pyruvate}} in the presence of {{c2::NAD+}}, which converts to {{c2::NA…
Published 07/30/2024 The LD enzymes are be separated by {{c1::electrophoresis}}
Published 07/30/2024 The LD{{c1::1 and LD2}} isoenzyme/s can be isolated using antigen-antibody reactions.
Published 07/30/2024 Specimen for measuring LD and CK levels: {{c1::Serum and non-hemolyzed}} sample
Published 07/30/2024 Reference Range of LD in Male/Female {{c1::180-360}} IU/L
Published 07/30/2024 LD Isozyme Reference Range (% OF TOTAL LD){{c1::LD1}}: 14-26%
Published 07/30/2024 LD Isozyme Reference Range (% OF TOTAL LD){{c1::LD2}}: 29-39%
Published 07/30/2024 LD Isozyme Reference Range (% OF TOTAL LD){{c1::LD4}}: 8-16%
Published 07/30/2024 LD Isozyme Reference Range (% OF TOTAL LD){{c1::LD5}}: 6-16%
Published 07/30/2024 The following CK isoenzyme/s is/are associated with heart muscle damage and elevations are indicative of AMI when used with other markers{{c1::CK-MB/C…
Published 07/30/2024 The following CK isoenzyme/s is/are associated with skeletal muscle damage {{c1::CK-MB/CK-2 and CK-MM/CK-3}}
Published 07/30/2024 Marker increased in CNS disorders, seizures, convulsions, and tumors of various organs{{c1::CK-BB/CK-1}}
Published 07/30/2024 When we suspect AMI, we check CK-MB fraction along with {{c1::cardiac troponin (I and T)}} and sometimes, {{c1::myoglobin}}.
Published 07/30/2024 Following AMI, CK-MB levels rise within {{c1::4-6}} hours, peak within {{c2::12-24}} hours, and return to normal within {{c3::2-3}} days
Published 07/30/2024 Creatinine kinase activates creatinine in muscle by transferring a {{c1::high-energy phosphate group}} in the reaction. 
Published 07/30/2024 Test Method 1 for CK  ​EnzymeReaction​ CK​​{{c3::Creatinine + ATP ↔  creatinine phosphate + ADP}}{{c1::​Pyru…
Published 07/30/2024 CK levels are measured through a {{c1::de::de/in}}crease in {{c2::NADH}} that reflects the activity of CK in serum
Published 07/30/2024 Hemolysis may elevate CK because RBCs may contain {{c1::adenylate kinase::enzyme}} (catalyzes ADP -> ATP) which increases ATP, causing false increa…
Published 07/30/2024 Gender RangeCK Range Male{{c1::46 - 171}} U/LFemale{{c2::34 - 145}} U/L
Published 07/30/2024 In the CK-MB method, only the CK-{{c1::B}} component will react
Published 07/30/2024 In testing for CK-MB, the sample is intubated in the CK-MB reagent which includes the {{c1::anti-CK-M antibody}}
Published 07/30/2024 Test Methodology for CK-MB: Reaction  ​EnzymeReaction​ ​CK-B​{{c3::Creatinine + ADP↔ creatinine phosphate + ATP}}…
Published 07/30/2024 CK-MB Reference Range: {{c1::<3.9}}% or {{c1::<5.0}} μg/L 
Published 07/30/2024 Troponin/s that can be used as Cardiac Markers for AMI{{c1::cTnI and cTnT}}
Published 07/30/2024 Myoglobin, cTnT and cTnI are measured using {{c1::radio immunoassay method}}.
Published 07/30/2024 In the Antigen-Capture Immunoassay method {{c1::A}},[VR] 1. Label Signal 2. Target analyte (troponin T) concentration{{c2::B. Inversely related}}
Published 07/30/2024 CTnT MethodAntigen-Capture Immunoassay method B is {{c1::inversely::directly/inversely}} related.
Published 07/30/2024 CTnT MethodWe use this method if we want to detect the {{c1::antibody}}.
Published 07/30/2024 In the non-competitive immunoassay method, [VR] 1. Label Signal 2. Target analyte (troponin T) concentration{{c1::A. directly related}}
Published 07/30/2024 {{c1::Chemiluminescence}} is the most sensitive test for the cTnT. 
Published 07/30/2024 Specimen used for cTnT determination is {{c1::serum}}. 
Published 07/30/2024 Reference Range for cTnT: {{c1::<0.01}} μg/L
Published 07/30/2024 cTnI can be measured in serum for {{c1::1 to 14::range}} days
Published 07/30/2024 The common principle of analysis for cTnI is immunoassay, using {{c1::anti-troponin monoclonal antibody and chemiluminescence}}
Published 07/30/2024 Specimen for testing cTnI is {{c1::heparinized plasma}} with no contamination of buffy coat cells
Published 07/30/2024 Reference Range of cTnI: {{c1::0.0 - 0.05}} ng/mL
Published 07/30/2024 Following AMI, Myoglobin levels rise within {{c1::1-3}} hours, peak within {{c2::5-12}} hours, and return to normal within {{c3::18-30}} HOURS
Published 07/30/2024 {{c1::Myoglobin::cardiac marker}} is not tissue specific, thus it is better used as a negative predictor
Published 07/30/2024 Myoglobin is quantified by {{c1::immunoassay::method}}
Published 07/30/2024 GenderMyoglobin Range Male{{c1::30-90}} ng/mLFemale{{c2::<50}} ng/mL
Published 07/30/2024 Troponin I is very specific, but it lasts very long and thus, cannot detect {{c1::reinfarction}}.
Published 07/30/2024 Alcohol and drugs such as {{c2::opiates, salicylates, or ampicillin::3}} may {{c1::in::de/in}}crease AST activity.
Published 07/30/2024 Freezing WHOLE blood runs the risk of {{c1::hemolysis. read extra}}
Published 07/30/2024 CK-{{c1::BB}} or CK-{{c1::1}} isoenzyme belongs to the brain
Published 07/30/2024 CK-{{c1::MB}} or CK-{{c1::2}} isoenzyme belongs to the heart
Published 07/30/2024 CK-{{c1::MM}} or CK-{{c1::3}} isoenzyme belongs to the muscles
Published 07/30/2024 A patient with a tumor in the prostate gland will see an increase in CK-{{c1::BB}}
Published 07/30/2024 Test Method 2 for CK ​EnzymeReaction​ ​CK​{{c3::Creatinine phosphate + ADP ↔ Creatinine + ATP}}{{c1::​Hexokinase (HK)}…
Published 07/30/2024 All cardiac markers under spectrophotometry are measured at {{c1::340}} nm
Published 07/30/2024 Troponin {{c1::C}} cardiac marker should not be ordered
Published 07/30/2024 Cardiac Troponin {{c1::T}} is in its bound form in the heart and free form in the {{c2::cytoplasm}}
Published 07/30/2024 Cardiac Troponin {{c1::I}} is only found in cardiac muscle
Published 07/30/2024 Presence of biomarkers at the onset of MI: {{c1::Myoglobin}} -> {{c2::Troponin}} (large infarction) -> {{c2::Troponin}} (small infarction) …
Published 07/30/2024 {{c1::CK-MB::CK isoenzyme}} values >{{c2::6}}% of total CK are suggestive of AMI
Published 07/30/2024 The rate of {{c1::NADH::product}} formation in the CK-MB reaction, is {{c1::directly::directly/indirectly}} proportional to serum CK-B activity. …
Published 07/30/2024 Following AMI (Cardiac Troponin T and I) DescriptioncTnTcTnI Increases in{{c1::3-4}} hours following infarction{{c2::3…
Published 07/30/2024 Upper Limit of AST for different DiseasesInfectious mononucleosis - Up to {{c1::20}} times
Published 07/30/2024 Upper Limit of AST for different DiseasesCirrhosis - Up to {{c1::4}} times
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