In the high-stakes environment of the emergency department or the intensive care unit, seconds save lives. When a cardiovascular crisis strikes, there is no time to flip through a textbook or look up a dosage calculator. Every clinician must have an absolute, instinctual command of core resuscitation and cardiac stabilization medications.
1. Adrenaline (Epinephrine)
Use: Cardiac arrest, severe anaphylaxis.
Dose: 1 mg IV every 3–5 minutes.
Action: Increases heart rate and blood pressure to restore perfusion.
2. Aspirin
Use: Acute Coronary Syndrome (ACS), Myocardial Infarction (Heart Attack).
Dose: 160–325 mg chewable tablet.
Action: Antiplatelet agent; stops blood clots from getting larger.
3. Atropine
Use: Symptomatic bradycardia (slow heart rate).
Dose: 0.5 mg IV bolus, repeat as needed.
Action: Blocks vagal tone to rapidly increase heart rate.
4. Amiodarone
Use: Ventricular arrhythmias (VF , pulseless VT).
Dose: 300 mg IV push, then 150 mg if needed.
Action: Antiarrhythmic; stabilizes erratic cardiac electrical activity.
5. Adenosine
Use: Supraventricular Tachycardia (SVT).
Dose: 6 mg rapid IV push (then 12 mg if needed).
Action: Temporarily “reboots” the AV node to slow down a racing heart.
6. Nitroglycerin
Use: Unstable angina, acute heart attack.
Dose: 0.4 mg sublingual tablet or 5–10 mcg/min IV infusion.
Action: Dilates coronary arteries to improve blood flow and reduce heart workload.
7. Dopamine
Use: Cardiogenic shock, severe hypotension.
Dose: 5–20 mcg/kg/min IV infusion.
Action: Inotrope; strengthens heart contractions and improves systemic perfusion.
8. Noradrenaline (Norepinephrine)
Use: Severe hypotension, shock states.
Dose: 0.05–0.5 mcg/kg/min IV infusion.
Action: Vasopressor; constricts blood vessels to rapidly increase blood pressure.
Managing a cardiac emergency requires cool heads, swift coordination, and absolute pharmaceutical precision. Memorizing these key dosages, indications, and physiological actions ensures that when the crash cart opens, you are ready to deliver immediate, life-saving care.
In your clinical experience, which of these emergency medications do you find yourself administering or preparing most frequently during a shift??
MBH/PS