This clinical investigation is designed to demonstrate the performance characteristics of the RAMP® cardiac tests analyzed on the RAMP® 200 by non-laboratorial Operators at the point-of-care when compared to the results for the same samples analyzed on the RAMP® Reader.

Inclusion Criteria:

Study Arms A - Troponin I (ACS/MI)

1. Males or Females, 18 years of age or older, of any race
2. Has had a routine test order of Troponin for suspected Acute Coronary Syndrome / Myocardial Infarction (ACS/MI) - as per institutional guidelines
3. Willing to voluntarily agree to sign a consent form (if applicable)

Study Arms B - Myoglobin (ACS/MI)

1. Males or Females, 18 years of age or older, of any race
2. Has had a routine test order of Troponin for suspected Acute Coronary Syndrome / Myocardial Infarction (ACS/MI) - as per institutional guidelines
3. Myoglobin test result falls within the reportable range of the test as reported in the RAMP® Myoglobin IFU.
4. Willing to voluntarily agree to sign a consent form (if applicable)

Study Arms C - CK-MB (ACS/MI)

1. Males or Females, 18 years of age or older, of any race
2. Has had a routine test order of Troponin for suspected Acute Coronary Syndrome / Myocardial Infarction (ACS/MI) - as per institutional guidelines
3. CK-MB test result falls within the reportable range of the test as reported in the RAMP® CK-MB IFU.
4. Willing to voluntarily agree to sign a consent form (if applicable)

Study Arm D - NT-proBNP (HF)

1. Males or Females, 18 years of age or older, of any race
2. Has had a routine test order of NT-proBNP or BNP for suspected Heart Failure (HF) - as per institutional guidelines
3. Willing to voluntarily agree to sign a consent form (if applicable)

Exclusion Criteria:

Study Arms A, B, C - Troponin I, Myoglobin, CK-MB (ACS/MI)

1. Healthy Subjects
2. Pregnant or lactating
3. Subjects not having a cardiac marker test ordered
4. Blood sample collected >24 hours prior to screening
5. Subjects without adequate volumes of surplus EDTA whole blood available for all required trial testing
6. Non-compliance to the protocol or the inclusion criteria

Study Arm D - NT-proBNP (HF)

1. Healthy Subjects
2. Pregnant or lactating
3. Subjects not having a cardiac marker test ordered
4. Blood sample collected >24 hours prior to screening
5. Subjects without adequate volumes of surplus EDTA whole blood available for all required trial testing
6. Non-compliance to the protocol or the inclusion criteria

Approximately 600 total subjects, 18 years of age and older will be enrolled into this study at a minimum of 3 sites in the United States of America (USA).

Each site will screen for a minimum of approximately 200 clinical surplus whole blood samples derived from subjects presenting with symptoms and signs indicative of cardiovascular heart disease (i.e. acute myocardial infarction and/or heart failure). It is expected that the population will be divided approximately equally between males and females. Clinical site enrollment will be monitored throughout the trial to verify population distribution.