Quaaludes were originally prescribed for things like sleeplessness and anxiety, but have since been made illegal because of their addictiveness. Methaqualone is classified as a hypnotic sedative and was originally prescribed to treat anxiety and relax muscles.uaaludes were originally prescribed for things like sleeplessness and anxiety, but have since been made illegal because of their addictiveness. Methaqualone is classified as a hypnotic sedative and was originally prescribed to treat anxiety and relax muscles.
1 Serum levels increase within 3-12 hours from the onset of chest pain, peak at 24-48 hours, and return to baseline over 5-14 days. 2  Troponin levels may not be detectable for six hours after the onset of myocardial cell injury. 3  The most sensitive early marker for myocardial infarction is myoglobin.
Patients presenting to the emergency department with chest discomfort will have an initial assessment for a possible heart attack (myocardial infarction). 1  Electrocardiograms (ECGs or EKGs) are used in the evaluation of patients with chest discomfort but can be normal or not diagnostic in patients with a myocardial infarction.