NREMT EMR study materials
NREMT EMR study resources

NREMT EMR key terms

NREMT EMR · Get comfortable with the vocabulary.

Patent airway

An airway that is open and clear so air can move in and out. It may need positioning, suction, or an airway device.

Related: Oropharyngeal airway (OPA), Suctioning
Oropharyngeal airway (OPA)

A curved plastic device placed in the mouth to keep the tongue from blocking the airway in an unresponsive patient who has no gag reflex.

Related: Patent airway
Bag-valve-mask (BVM)

A handheld device with a self-inflating bag and mask. It is used to give positive-pressure breaths to a patient who is not breathing adequately.

Related: Chest compressions
Suctioning

Using a suction device to remove blood, vomit, or secretions from the mouth and throat so the airway stays open.

Related: Patent airway
Hypoxia

A condition in which body tissues do not get enough oxygen. Signs can include restlessness, confusion, and a bluish skin color.

Related: Cyanosis, Pulse oximetry
Cyanosis

A bluish or gray color of the skin, lips, or nail beds caused by a low level of oxygen in the blood.

Related: Hypoxia
Stridor

A high-pitched, harsh breathing sound often heard when the patient breathes in. It suggests a blockage in the upper airway.

Related: Wheezing
Wheezing

A whistling sound made during breathing when the lower airways are narrowed, such as in asthma or an allergic reaction.

Related: Stridor
Pulse oximetry

A noninvasive test using a device on the finger or earlobe to estimate how much oxygen is carried in the blood.

Related: Hypoxia
Nonrebreather mask

A mask with a reservoir bag that can give a high concentration of oxygen to a patient who is breathing adequately.

Related: Pulse oximetry
Head-tilt chin-lift

A maneuver that tilts the head back and lifts the chin to open the airway. It is used when a spinal injury is not suspected.

Related: Patent airway
Cardiac arrest

A condition in which the heart stops pumping effectively. The patient is unresponsive, is not breathing normally, and has no pulse.

Related: Cardiopulmonary resuscitation (CPR), Automated external defibrillator (AED)
Cardiopulmonary resuscitation (CPR)

A combination of chest compressions and rescue breaths that keeps blood and oxygen moving when the heart has stopped.

Related: Chest compressions, Cardiac arrest
Automated external defibrillator (AED)

A portable device that checks the heart rhythm and delivers a shock to some cardiac arrest patients. It gives voice prompts to the user.

Related: Defibrillation, Ventricular fibrillation
Defibrillation

An electric shock delivered to the heart to stop a chaotic rhythm and allow a normal rhythm to return. It is used in some cardiac arrests.

Related: Automated external defibrillator (AED), Ventricular fibrillation
Ventricular fibrillation

A chaotic, ineffective heart rhythm that causes cardiac arrest. It is one rhythm that can be treated with an electric shock.

Related: Defibrillation
Chest compressions

Rhythmic pressing on the lower half of the breastbone to pump blood through the body during CPR. They are a key part of CPR.

Related: Cardiopulmonary resuscitation (CPR)
Chain of survival

A series of actions, from early recognition and CPR to advanced care, that improves the chance of surviving cardiac arrest.

Related: Cardiopulmonary resuscitation (CPR), Automated external defibrillator (AED)
Hemorrhage

The escape of blood from blood vessels. Severe bleeding can lead to shock and death if it is not controlled quickly.

Related: Direct pressure, Tourniquet
Direct pressure

Firm pressure applied directly over a bleeding wound with a dressing or gloved hand to help stop hemorrhage. This is often the first method used.

Related: Hemorrhage, Tourniquet
Tourniquet

A tight band placed around a limb above a severe bleeding site to stop blood flow when direct pressure does not work.

Related: Hemorrhage
Shock

A life-threatening condition in which body tissues do not get enough blood flow and oxygen. Signs include pale skin, rapid pulse, and confusion.

Related: Hemorrhage
Fracture

A broken bone. It may cause pain, swelling, deformity, and trouble using the injured body part. Splinting can help stabilize it.

Related: Splint
Splint

A device used to support and keep an injured body part still. This reduces pain and helps prevent further damage.

Related: Fracture
Hypoglycemia

Low blood sugar. It can cause confusion, sweating, hunger, and fainting, and may be treated with sugar if the patient can swallow.

Related: Seizure
Seizure

A sudden burst of abnormal electrical activity in the brain. It can change awareness, movement, or behavior. Protect the patient from injury.

Related: Hypoglycemia, Eclampsia
Stroke

A brain injury caused by a blocked or ruptured blood vessel. Signs include face droop, arm weakness, and trouble speaking.

Anaphylaxis

A severe allergic reaction that can cause breathing trouble, swelling, and low blood pressure. It is treated with epinephrine. This is an emergency.

Related: Epinephrine auto-injector
Epinephrine auto-injector

A device that injects epinephrine into the thigh to treat a severe allergic reaction. It can help reverse serious breathing and blood pressure problems.

Related: Anaphylaxis
Naloxone

A medicine that reverses an opioid overdose by helping restore breathing. It can be given as a nasal spray or injection.

Labor

The process of childbirth. It includes contractions that help push the baby and placenta out of the uterus. Labor may last many hours.

Related: Crowning
Crowning

The stage of birth when the baby's head first appears at the vaginal opening. Delivery is very close at this point.

Related: Labor
Postpartum hemorrhage

Heavy bleeding from the uterus after childbirth. It can be life-threatening and needs urgent medical care. It is a serious obstetric emergency.

Related: Hemorrhage
Eclampsia

A serious pregnancy condition with seizures and high blood pressure. It requires emergency care for the mother and baby. It can be life-threatening.

Related: Seizure
Triage

The process of sorting patients by how urgent their needs are so limited resources go to those who need care most.

Related: Multiple-casualty incident (MCI)
Incident command system (ICS)

A standard organizational system used to manage emergency incidents and coordinate the work of responders. It sets roles and communication.

Related: Multiple-casualty incident (MCI), Triage
Personal protective equipment (PPE)

Gear such as gloves, masks, and eye protection that protects responders from body fluids and other hazards. It is used with standard precautions.

Multiple-casualty incident (MCI)

An emergency with more patients than the available resources can handle at once. It requires triage and incident command. Extra help must be requested.

Related: Triage, Incident command system (ICS)
Consent

A patient's permission for care. It may be expressed, implied in an emergency, or given by a parent or guardian.