Cardiovascular emergencies are life-threatening conditions that must be recognized promptly to avoid treatment delays and minimize morbidity and mortality. Patients may present with severe hypertension, chest pain, abnormal rhythms, or cardiopulmonary arrest.

Clostridioides difficile is a bacterium that causes infections of the large intestine (colon). Symptoms range from diarrhea to life-threatening colon damage. C. difficile disease usually occurs after antibiotic use. It is most common among older people who are in hospitals or long-term care facilities.

Ebola virus disease (EVD) is a rare and fatal disease that affects humans and non-human primates. The virus that causes EVD is mainly found in sub-Saharan Africa. A human can become infected with EVD through direct contact with an infected animal (bats or non-human primates), or with sick or dead people infected with the Ebola virus.

Emerging diseases include HIV infection, SARS, Lyme disease, E. coli O157:H7 (E. coli), hantavirus, dengue fever, West Nile virus and Zika virus. Recurrent disease is disease that recurs after significant relief. Relapses can occur because the public health response to a disease that was once under control has collapsed. It can also occur when new strains of known disease-causing organisms emerge.

Methicillin-resistant Staphylococcus aureus (MRSA) infections are caused by staphylococci that have become resistant to many of the antibiotics used to treat common staphylococcal infections.
Most MRSA infections occur in people admitted to hospitals or other health care facilities such as nursing homes and dialysis centers. HA-MRSA infections are usually associated with invasive procedures or devices such as surgery, intravenous lines, or artificial joints. HA-MRSA can be spread by healthcare workers by touching people with dirty hands or by touching dirty surfaces.

Pain can be debilitating and frustrating. It can interfere with sleep, work, activities, and time with friends and family. Pain treatments can relieve pain and allow you to enjoy life. However, treatment is complex and can have harmful effects if not properly managed and monitored.

Sepsis is the body's extreme reaction to infection. This is a life-threatening medical emergency. Sepsis occurs when an existing infection sets off a chain reaction throughout the body. Infections leading to sepsis most commonly begin in the lungs, urinary tract, skin, or gastrointestinal tract.

Emergency surgery is necessary to treat acute threats to life, organs, limbs, or tissues posed by trauma, acute disease processes, acute exacerbations of chronic disease processes, or complications of surgical or other procedures. Defined as surgery is triggered. Skills required for emergency surgery include the ability to perform abdominal (including urological), thoracic, vascular, and soft tissue procedures that must be performed within 24 hours.

Poisoning is injury or death from swallowing, inhaling, touching, or injecting various drugs, chemicals, poisons, or gases. Many substances, such as pharmaceuticals and carbon monoxide, are toxic only at high concentrations or doses. Certain types of detergents are only harmful if ingested, while others also release toxic fumes/fumes. Children are also particularly sensitive to small amounts of certain medications and chemicals.