White coat

A white coat

A white coat or laboratory coat (often abbreviated to lab coat) is a knee-length overcoat/smock worn by professionals in the medical field or by those involved in laboratory work. The coat protects their street clothes and also serves as a simple uniform. The garment is made from white or light-colored cotton, linen, or cotton polyester blend, allowing it to be washed at high temperature and make it easy to see if it is clean and would not contaminate others and work.

Similar coats are a symbol of learning in Argentina, where they are worn by students. In Tunisia and Mozambique, teachers wear white coats to protect their street clothes from chalk.

Like the word "suit", the phrase "white coat" is sometimes used as a synecdoche to denote the wearer, such as a scientist working in a high-tech company.

A lab coat one of the personal protective equipment and is worn to give you maximum protection in the following ways:^[1] 

• The laboratory coat must be able to either absorb or deflect splashes harmful materials . 
• Some laboratory coats can serve specific purposes – fire resistance and electricity resistance
• Even if the fire resistance coat starts to burn, the wearer should be able to escape without injury or with less serious injuries. 

Types

Lab coat can be made from different types of materials.^[2]

How to take care of lab coat

Some departments and faculties offer laundry facilities for lab coats. A lab coat is usually not recommended to wash together with normal clothes, especially the one that involved with hazardous chemicals. According to Policy for Personal Protective Equipment (PPE), any lab coats that are contaminated with hazardous materials may NOT be allowed to taken home. If the coats is highly contaminated with hazardous waste to a certain extend, they must be disposed of as hazardous waste. Moreover, for the coats that are not contaminated or contaminated in a very small amount, it would be best not to keep a lab coat with normal clothes because the coat might spread chemicals and contaminated them with dangerous chemicals.

In medicine

White coats are sometimes seen as the distinctive dress of both physicians and surgeons, who have worn them for over 100 years.^[3] In the nineteenth century, respect for the certainty of science was in stark contrast to the quackery and mysticism of nineteenth century medicine. To emphasize the transition to the more scientific approach to modern medicine, physicians sought to represent themselves as scientists, and began to wear the most recognizable symbol of the scientist, the white laboratory coat.^[4]

Recently, white coat ceremonies have become popular amongst those starting medical school.

The modern white coat was introduced to medicine in the late 1800s as a symbol of cleanliness^[5][6]

Patient perceptions

A study conducted in the United Kingdom found that the majority of patients prefer their doctors to wear white coats, but the majority of doctors prefer other clothing, such as scrubs.^[7] The study found that psychiatrists were among the least likely to wear white coats and when they are worn, they are typically worn over the scrubs. Some medical doctors view the coats as hot and uncomfortable, and many feel that they spread infection.^[7]

White coat hypertension

Some patients who have their blood pressure measured in a clinical setting have higher readings than they do when measured in a home setting. This is apparently a result of patients feeling more relaxed when they are at home. The phenomenon is sometimes called "white coat hypertension," in reference to the traditional white coats worn in a clinical setting, though the coats themselves may have nothing to do with the elevated readings.^[8]

In psychiatry

The term is also used as verbal shorthand for psychiatric orderlies or other personnel and may be used, in a usually jocular manner, to imply someone's lunacy or paranoia. In the 1966 song, They're Coming to Take Me Away Ha-Haaa!, Napoleon XIV fictionalized the public's view of the symbolic relationship between such institutions and white coats in the following lyrics:

They're coming to take me away ho ho hee hee ha haaa!
To the funny farm,
Where life is beautiful all the time.
And I'll be happy to see those nice young men
In their clean white coats,
And they're coming to take me away ha haaa!

White versus black

A tie-dyed lab coat

Until the mid-1920s, students who were examining cadavers would wear black lab coats to show respect for the dead. Black lab coats were used in early biomedical and microbiology laboratories because any contamination that settled on them was easily visible.

White coat ceremony

A white coat ceremony is a relatively new ritual that marks one's entrance into medical school and, more recently, into a number of related health-related schools and professions. It originated in Columbia University's College of Physicians and Surgeons in 1993^[9] and involves a formal "robing" or "cloaking" in white lab coats.

Controversy

Studies have shown that doctor's coats worn in hospitals can harbor contagions including MRSA.^[10]

In 2007, the UK National Health Service started banning long-sleeved coats.^[11]

In 2009, the American Medical Association investigated banning coats with long sleeves to protect patients, but did not institute a ban.^[12]

A study published in 2011 investigating the effectiveness of the NHS ban showed no statistical difference in contamination levels between residents wearing long-sleeved coats and those wearing short-sleeved scrubs.^[13]

In an effort to reduce the contamination of healthcare uniforms, ASTM International is developing standards to specifically address liquid penetration resistance, liquid repellency, bacterial decontamination, and Antimicrobial properties of such uniforms.^[14]

In laboratory work

When used in the laboratory, lab coats protect against accidental spills, e.g., acids. In this case they usually have long sleeves and are made of an absorbent material, such as cotton, so that the user can be protected from the chemical. Some lab coats have buttons or elastic at the end of the sleeves, to secure them around the wrist so that they do not hang into beakers of chemicals. Short-sleeved lab coats also exist where protection from substances such as acid is not necessary, and are favoured by certain scientists, such as microbiologists, avoiding the problem of hanging sleeves altogether, combined with the ease of washing the forearms (an important consideration in microbiology).

Howie coats

For added safety, a variant of the lab coat, called a "Howie" style lab coat is often adopted . It is called such after a 1978 report commissioned by the UK department of Health and Social Security to codify standard clinical laboratory practices, chaired by J. W. Howie. Among the codified standards was protective clothing; the type of wrap-around full coverage lab coat that had been in use in the UK for over a hundred years was nicknamed the "Howie-Style" coat to indicate its compliance with the provisions of this report. It has the buttons on the left flank, elasticated wrists and a mandarin collar, and is quite similar to a chef's uniform. It is designed to minimize pathogen contact with street clothes.

Use as a school uniform

The ubiquitous white uniform of Argentine school children is a national symbol of learning.

White coats which resemble lab coats are worn by students and teachers of most public primary schools as a daily uniform in countries like Argentina, Uruguay, Spain, Bolivia and Morocco. It also was formerly worn in past decades in Paraguay and Chile.

See also

• White coat hypertension
• Scrubs (clothing)

References

External links

• White coats and the medical profession
• Unisex Lab Coats, USA