Universal precautions refers to the practice, in

medicine Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care pract ...

, of avoiding contact with patients' bodily fluids, by means of the wearing of nonporous articles such as

medical gloves Medical gloves are disposable gloves used during medical examinations and procedures to help prevent cross-contamination between caregivers and patients. Medical gloves are made of different polymers including latex, nitrile rubber, polyvinyl ...

goggles Goggles, or safety glasses, are forms of protective eyewear that usually enclose or protect the area surrounding the eye in order to prevent particulates, water or chemicals from striking the eyes. They are used in chemistry laboratories and ...

, and face shields. The infection control techniques were essentially good hygiene habits, such as hand washing and the use of gloves and other barriers, the correct handling of

hypodermic needle A hypodermic needle (from Greek ὑπο- (''hypo-'' = under), and δέρμα (''derma'' = skin)), one of a category of medical tools which enter the skin, called sharps, is a very thin, hollow tube with one sharp tip. It is commonly used w ...

scalpel A scalpel, lancet, or bistoury is a small and extremely sharp bladed instrument used for surgery, anatomical dissection, podiatry and various arts and crafts (either called a hobby knife or an X-acto knife.). Scalpels may be single-use disposa ...

s, and aseptic techniques. Following the AIDS outbreak in the 1980s the US CDC formally introduced them in 1985–88. Every patient was treated as if infected and therefore precautions were taken to minimize risk. In 1987, the practice of universal precautions was adjusted by a set of rules known as

body substance isolation Body substance isolation is a practice of isolating all body substances (blood, urine, feces, tears, etc.) of individuals undergoing medical treatment, particularly emergency medical treatment of those who might be infected with illnesses such as H ...

. In 1996, both practices were replaced by the latest approach known as standard precautions. Use of

personal protective equipment Personal protective equipment (PPE) is protective clothing, helmets, goggles, or other garments or equipment designed to protect the wearer's body from injury or infection. The hazards addressed by protective equipment include physical, elec ...

is now recommended in all health care settings.

Historical significance

Universal precautions are an

infection control Infection prevention and control is the discipline concerned with preventing healthcare-associated infections; a practical rather than academic sub-discipline of epidemiology. In Northern Europe, infection prevention and control is expanded fro ...

practice. Under universal precautions all patients were considered to be possible carriers of blood-borne pathogens. The guideline recommended wearing gloves when collecting or handling blood and body fluids contaminated with blood, wearing face shields when there was danger of blood splashing on mucous membranes and disposing of all needles and sharp objects in puncture-resistant containers. Universal precautions were introduced in the US by

CDC The Centers for Disease Control and Prevention (CDC) is the national public health agency of the United States. It is a United States federal agency, under the Department of Health and Human Services, and is headquartered in Atlanta, Georgi ...

in the wake of the AIDS epidemic between 1985 and 1988.CDC
Update: universal precautions for prevention of transmission of human immunodeficiency virus, hepatitis B virus, and other bloodborne pathogens in health-care settings
MMWR Morb Mortal Wkly Rep 1988;37(24):377-82, 87–8. In 1987, the practice of universal precautions was adjusted by a set of rules known as

. In 1996, both practices were replaced by the latest approach known as standard precautions.

Use

Universal precautions were designed for doctors, nurses, patients, and healthcare workers who came into contact with patients and their bodily fluids. This included staff and others who might not come into direct contact with patients. Universal precautions were typically practiced in any environment where workers were exposed to bodily fluids, such as

blood Blood is a body fluid in the circulatory system of humans and other vertebrates that delivers necessary substances such as nutrients and oxygen to the cells, and transports metabolic waste products away from those same cells. Blood in the c ...

semen Semen, also known as seminal fluid, is an organic bodily fluid created to contain spermatozoa. It is secreted by the gonads (sexual glands) and other sexual organs of male or hermaphroditic animals and can fertilize the female ovum. Semen i ...

vaginal secretion Vaginal discharge is a mixture of liquid, cells, and bacteria that lubricate and protect the vagina. This mixture is constantly produced by the cells of the vagina and cervix, and it exits the body through the vaginal opening. The composition, amo ...

s, synovial fluid,

amniotic fluid The amniotic fluid is the protective liquid contained by the amniotic sac of a gravid amniote. This fluid serves as a cushion for the growing fetus, but also serves to facilitate the exchange of nutrients, water, and biochemical products betwee ...

cerebrospinal fluid Cerebrospinal fluid (CSF) is a clear, colorless body fluid found within the tissue that surrounds the brain and spinal cord of all vertebrates. CSF is produced by specialised ependymal cells in the choroid plexus of the ventricles of the bra ...

pleural fluid The pleural cavity, pleural space, or interpleural space is the potential space between the pleurae of the pleural sac that surrounds each lung. A small amount of serous pleural fluid is maintained in the pleural cavity to enable lubrication be ...

peritoneal fluid Peritoneal fluid is a serous fluid made by the peritoneum in the abdominal cavity which lubricates the surface of tissue that lines the abdominal wall and pelvic cavity. It covers most of the organs in the abdomen. An increased volume of periton ...

pericardial fluid Pericardial fluid is the serous fluid secreted by the serous layer of the pericardium into the pericardial cavity. The pericardium consists of two layers, an outer fibrous layer and the inner serous layer. This serous layer has two membranes which ...

, feces and

urine Urine is a liquid by-product of metabolism in humans and in many other animals. Urine flows from the kidneys through the ureters to the urinary bladder. Urination results in urine being excretion, excreted from the body through the urethra. Cel ...

. Bodily fluids which did not require such precautions included

nasal secretion Mucus ( ) is a slippery aqueous secretion produced by, and covering, mucous membranes. It is typically produced from cells found in mucous glands, although it may also originate from mixed glands, which contain both serous and mucous cells. It i ...

vomitus Vomiting (also known as emesis and throwing up) is the involuntary, forceful expulsion of the contents of one's stomach through the mouth and sometimes the nose. Vomiting can be the result of ailments like food poisoning, gastroenteri ...

perspiration Perspiration, also known as sweating, is the production of fluids secreted by the sweat glands in the skin of mammals. Two types of sweat glands can be found in humans: eccrine glands and apocrine glands. The eccrine sweat glands are distr ...

, sputum and

saliva Saliva (commonly referred to as spit) is an extracellular fluid produced and secreted by salivary glands in the mouth. In humans, saliva is around 99% water, plus electrolytes, mucus, white blood cells, epithelial cells (from which DNA can be ...

.CDC. Update: universal precautions for prevention of transmission of human immunodeficiency virus, hepatitis B virus, and other bloodborne pathogens in health-care settings. MMWR Morb Mortal Wkly Rep 1988;37(24):377-82, 87–8.Lynch P, Jackson MM, Cummings MJ, Stamm WE. Rethinking the role of isolation practices in the prevention of nosocomial infections. Ann Intern Med 1987;107(2):243-6.Garner JS. Guideline for isolation precautions in hospitals. The Hospital Infection Control Practices Advisory Committee. Infect Control Hosp Epidemiol 1996;17(1):53–80.(s).

Equipment

Since

pathogen In biology, a pathogen ( el, πάθος, "suffering", "passion" and , "producer of") in the oldest and broadest sense, is any organism or agent that can produce disease. A pathogen may also be referred to as an infectious agent, or simply a germ ...

s fall into two broad categories, bloodborne (carried in the body fluids) and airborne,

included, but was not limited to barrier gowns,

gloves A glove is a garment covering the hand. Gloves usually have separate sheaths or openings for each finger and the thumb. If there is an opening but no (or a short) covering sheath for each finger they are called fingerless gloves. Fingerless glo ...

mask A mask is an object normally worn on the face, typically for protection, disguise, performance, or entertainment and often they have been employed for rituals and rights. Masks have been used since antiquity for both ceremonial and practic ...

s, eyewear like

glasses Glasses, also known as eyeglasses or spectacles, are vision eyewear, with lenses (clear or tinted) mounted in a frame that holds them in front of a person's eyes, typically utilizing a bridge over the nose and hinged arms (known as temples or ...

and face shields.

Additional precautions

Additional precautions are used in addition to universal precautions for patients who are known or suspected to have an infection which required extra measures, depending on the suspected route of transmission. Additional precautions are not needed for blood-borne infections, unless there are complicating factors. Conditions demanding additional precautions were

prion Prions are misfolded proteins that have the ability to transmit their misfolded shape onto normal variants of the same protein. They characterize several fatal and transmissible neurodegenerative diseases in humans and many other animals. It ...

diseases (e.g.,

Creutzfeldt–Jakob disease Creutzfeldt–Jakob disease (CJD), also known as subacute spongiform encephalopathy or neurocognitive disorder due to prion disease, is an invariably fatal degenerative brain disorder. Early symptoms include memory problems, behavioral changes, ...

), diseases with air-borne transmission (e.g.,

tuberculosis Tuberculosis (TB) is an infectious disease usually caused by '' Mycobacterium tuberculosis'' (MTB) bacteria. Tuberculosis generally affects the lungs, but it can also affect other parts of the body. Most infections show no symptoms, in ...

), diseases with droplet transmission (e.g., mumps,

rubella Rubella, also known as German measles or three-day measles, is an infection caused by the rubella virus. This disease is often mild, with half of people not realizing that they are infected. A rash may start around two weeks after exposure and ...

influenza Influenza, commonly known as "the flu", is an infectious disease caused by influenza viruses. Symptoms range from mild to severe and often include fever, runny nose, sore throat, muscle pain, headache, coughing, and fatigue. These symptoms ...

pertussis Whooping cough, also known as pertussis or the 100-day cough, is a highly contagious bacterial disease. Initial symptoms are usually similar to those of the common cold with a runny nose, fever, and mild cough, but these are followed by two or t ...

) and transmission by direct or indirect contact with dried skin (e.g., colonisation with

MRSA Methicillin-resistant ''Staphylococcus aureus'' (MRSA) is a group of Gram-positive bacteria that are genetically distinct from other strains of ''Staphylococcus aureus''. MRSA is responsible for several difficult-to-treat infections in humans. ...

) or contaminated surfaces or any combination of the above.

Adverse effects

As of 2010 research around stigma and discrimination in health-related settings has implicated universal precautions as a means by which health care workers discriminate against patients.Welch, S. E., & Bunin, J. (2010). Glove use and the HIV positive massage therapy client. Journal of Bodywork and Movement Therapies, 14(1), 35–39.Rintamaki, L. S., Scott, A. M., Kosenko, K. A., & Jensen, R. E. (2007). Male patient perceptions of HIV stigma in health care contexts. AIDS Patient Care and STDs, 21(12), 956–969. Particularly the employment of universal precautions when working with people with HIV and/or hepatitis C has been demonstrated to be inconsistent and implicated with feelings of stigmatization reported by those populations. Health-cased social research in 2004 revealed that by not applying universal precautions universally, as is the purpose, health professionals are instead making judgements based on an individual's health status.Treloar, C., & Hopwood, M. (2004). Infection control in the context of hepatitis C disclosure: Implications for education of healthcare professionals. Education for Health, 17(2), 183–191. It is speculated that this differential approach to care stems from stigma towards HIV and hepatitis C, rooted largely in fears and misconceptions around transmission and assumptions about patient lifestyle and risk.

Footnotes

External links

Recommendations for Prevention of HIV Transmission in Health-Care Settings
{{DEFAULTSORT:Universal Precautions Medical hygiene