Definition of Magnesium Sulfate

Magnesium Sulfate

Magnesium sulfate is a medication used in advanced cardiac life support to treat specific cardiac and respiratory emergencies. Its most established cardiac use is for torsades de pointes, a distinctive form of polymorphic ventricular tachycardia associated with a prolonged QT interval, where magnesium can stabilize the heart's electrical activity.

Beyond cardiac arrest, magnesium sulfate is used to manage severe asthma exacerbations, eclampsia and pre-eclampsia in pregnancy, and certain electrolyte disturbances. As with all resuscitation medications, correct indication, dosing, and administration are essential, since inappropriate use can cause its own complications such as low blood pressure and respiratory depression.

CPR Certification Labs provides hands-on, American Heart Association–aligned CPR, BLS, ACLS, and PALS certification training to help providers master these life-saving skills.

Medical Definition & Meaning

Get your AHA BLS, ACLS, and PALS Provider Certification today

Get your AHA BLS, ACLS, and PALS Provider Certification today

CPR Certification Labs has multiple classes available every day

Choose a course

What the AHA CPR Certification Course Includes

Comprehensive CPR Training for Adults, Children, and Infants

Our technology delivers immediate, actionable feedback that refines your skills in real time.

Proper Use of AED Devices for All Age Groups

Understand how to safely and effectively operate an Automated External Defibrillator (AED) for adults, children, and infants.

Airway Obstruction Relief and Heimlich Maneuver

Learn how to perform the Heimlich maneuver and clear airway obstructions caused by choking in both adults and infants.

Team-Based Multi-Rescuer CPR Techniques

Gain experience working as part of a team when more than one rescuer is available during an emergency.

Official American Heart Association CPR E-Card

Receive your AHA CPR Certification E-Card on the same day you complete the class and pass the exam.

Get your AHA BLS, ACLS, and PALS Provider Certification today

Local news