ST elevation myocardial infarction laboratory findings

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Acute Coronary Syndrome Main Page

ST Elevation Myocardial Infarction Microchapters


Patient Information



Pathophysiology of Vessel Occlusion
Pathophysiology of Reperfusion
Gross Pathology


Differentiating ST elevation myocardial infarction from other Diseases

Epidemiology and Demographics

Risk Factors


Natural History and Complications

Risk Stratification and Prognosis



Diagnostic Criteria

History and Symptoms

Physical Examination

Laboratory Findings


EKG Examples

Chest X Ray

Cardiac MRI


Coronary Angiography


Pre-Hospital Care

Initial Care

Beta Blockers
The coronary care unit
The step down unit
STEMI and Out-of-Hospital Cardiac Arrest
Pharmacologic Reperfusion
Reperfusion Therapy (Overview of Fibrinolysis and Primary PCI)
Reperfusion at a Non–PCI-Capable Hospital:Recommendations
Mechanical Reperfusion
The importance of reducing Door-to-Balloon times
Primary PCI
Adjunctive and Rescue PCI
Rescue PCI
Facilitated PCI
Adjunctive PCI
Management of Patients Who Were Not Reperfused
Assessing Success of Reperfusion
Antithrombin Therapy
Antithrombin therapy
Unfractionated heparin
Low Molecular Weight Heparinoid Therapy
Direct Thrombin Inhibitor Therapy
Factor Xa Inhibition
DVT prophylaxis
Long term anticoagulation
Antiplatelet Agents
Thienopyridine Therapy
Glycoprotein IIbIIIa Inhibition
Other Initial Therapy
Inhibition of the Renin-Angiotensin-Aldosterone System
Magnesium Therapy
Glucose Control
Calcium Channel Blocker Therapy
Lipid Management

Pre-Discharge Care

Recommendations for Perioperative Management–Timing of Elective Noncardiac Surgery in Patients Treated With PCI and DAPT

Post Hospitalization Plan of Care

Long-Term Medical Therapy and Secondary Prevention

Inhibition of the Renin-Angiotensin-Aldosterone System
Cardiac Rehabilitation
Pacemaker Implantation
Long Term Anticoagulation
Implantable Cardioverter Defibrillator
ICD implantation within 40 days of myocardial infarction
ICD within 90 days of revascularization

Case Studies

Case #1

Case #2

Case #3

Case #4

Case #5

ST elevation myocardial infarction laboratory findings On the Web

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FDA on ST elevation myocardial infarction laboratory findings

CDC on ST elevation myocardial infarction laboratory findings

ST elevation myocardial infarction laboratory findings in the news

Blogs on ST elevation myocardial infarction laboratory findings

Directions to Hospitals Treating ST elevation myocardial infarction

Risk calculators and risk factors for ST elevation myocardial infarction laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

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A new clinical evidence based classification system has been jointly introduced by the American College of Cardiology (ACC), American Heart Association (AHA), European Society of Cardiology (ESC), and the World Heart Federation (WHF).[1] The primary diagnostic tests include the electrocardiogram (ECG, EKG) and blood tests to detect elevated creatine kinase or troponin levels (these are chemical markers released by damaged tissues, especially the myocardium).

Four strategies for using troponin levels to diagnose acute myocardial infarction[2]
Strategy Proportion of patients meeting criteria Sensitivity
Limit of detection (hs-cTnI<2 ng/L) 16% 100%
Single cutoff (hs-cTnI<5 ng/L) 54% 97%*
1-hour algorithm (hs-cTnI<5 ng/L and 1-hour change<2 ng/L) 52% 98%
0/1-hour (hs-cTnI < limit of detection and 1-hour change<2 ng/L) (European Society of Cardiology guideline). 52% 98%
* Drops to 94% among patients who present within 2 hours of onset of chest pain.


  1. Thygesen K, Alpert JS, White HD (2007). "Task Force for the Redefinition of Myocardial Infarction. Universal definition of myocardial infarction Joint ESC/ACCF/AHA/WHF". Circulation. 2007: 2634–2653. PMID 17951284.
  2. Boeddinghaus J, Nestelberger T, Twerenbold R, Wildi K, Badertscher P, Cupa J; et al. (2017). "Direct Comparison of 4 Very Early Rule-Out Strategies for Acute Myocardial Infarction Using High-Sensitivity Cardiac Troponin I." Circulation. 135 (17): 1597–1611. doi:10.1161/CIRCULATIONAHA.116.025661. PMID 28283497.

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