In patients with acute ST-segment elevation myocardial infarction, the recommended dose of Lovenox is a single IV bolus of 30 mg plus a 1 mg/kg SC dose followed by 1 mg/kg administered SC every 12 hours (maximum 100 mg for the first two doses only, followed by 1 mg/kg dosing for the remaining doses).
Hardware failures inside the engine can also cause rough idle problems and misfires. Anything higher than the crankshaft itself is a likely culprit, but that doesn't mean the bearings or crankshaft itself aren't.
The last cause of a car to die in flight and not re-starting I will cover is loss of compression. This event occurs when the timing belt or timing chain brakes, slips or strips. If you have a trained ear, you will hear that the car has lost compression as soon as you crank it over.