Medical identification tag

A medical alert bracelet
Some medical alert bracelets have an openable hatch, that contains a multifolded waterproof paper, in which information about persons medical needs are written.
The emblem for medical emergency services in some countries, the Star of Life, features a rod of Asclepius.

Small emblem or tag worn on a bracelet, neck chain, or on the clothing bearing a message that the wearer has an important medical condition that might require immediate attention.

- Medical identification tag

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Article of jewellery that is worn around the wrist.

A decorative gold charm bracelet showing a heart-shaped locket, seahorse, crystal, telephone, bear, spaceship, and grand piano.
Ancient Egyptian hinged cuff bracelet, c. 1479 –1425 BCE
Penannular bracelet, Oxus Treasure, Achaemenid period, c. 500 BCE
Metal bangles
Amber beaded bracelet
Chain mail bracelet, in Byzantine weave, with silver-plated copper rings and green aluminium rings
Link bracelet
Silicone and stainless steel emergency ID sports bracelet (2010).
Vintage Trifari in-line jewelry bracelet, a.k.a. "tennis bracelet".
Popular friendship bracelets (2007).

Medical and identity information are marked on some bracelets, such as allergy bracelets, hospital patient-identification tags, and bracelet tags for newborn babies.

Do not resuscitate

Medical order, written or oral depending on country, indicating that a person should not receive cardiopulmonary resuscitation (CPR) if that person's heart stops beating.

DNR form used in Virginia
DNACPR form as used in Scotland

Medical bracelets, medallions, and wallet cards from approved providers allow for identification of DNR patients outside in home or non-hospital settings.


Serious, potentially fatal allergic reaction and medical emergency that is rapid in onset and requires immediate medical attention regardless of use of emergency medication on site.

Angioedema of the face such that the boy cannot open his eyes. This reaction was caused by an allergen exposure.
Signs and symptoms of anaphylaxis
Urticaria and flushing on the back of a person with anaphylaxis
Skin allergy testing being carried out on the right arm
Patch test
An old version of an EpiPen brand auto-injector

The action plan usually includes use of epinephrine autoinjectors, the recommendation to wear a medical alert bracelet, and counseling on avoidance of triggers.

Situs inversus

Congenital condition in which the major visceral organs are reversed or mirrored from their normal positions.

Situs inversus causes the positions of the heart and lungs to be mirrored.
Axial CT image showing dextrocardia and situs inversus in a patient with Kartagener syndrome.
Axial CT image showing situs inversus (liver and IVC on the left, spleen and aorta on the right) in a patient with Kartagener syndrome.
Situs inversus has an autosomal recessive pattern of inheritance.

Wearing a medical identification tag can help inform health care providers in the event the person is unable to communicate.


Group of liver disorders in which substances called porphyrins build up in the body, negatively affecting the skin or nervous system.

Left figure is urine on the first day while the right figure is urine after three days of sun exposures showing the classic change in color to purple.
A skin rash in a person with porphyria
Heme synthesis—note that some reactions occur in the cytoplasm and some in the mitochondrion (yellow)
George III in his coronation robes
Mary, Queen of Scots {{circa|1578}}.
Maria I of Portugal in a c. 1790s portrait attributed to Giuseppe Troni or Thomas Hickey.

It is recommended that patients with a history of acute porphyria, and even genetic carriers, wear an alert bracelet or other identification at all times.


Associated with some serious infection risks.

The human spleen is located in the upper left abdomen, behind the stomach

Alert warning - People without a working spleen can carry a card, or wear a special bracelet or necklet which says that they do not have a working spleen. This would alert a healthcare professional to take rapid action if they become are seriously ill and cannot notify them of their condition.


Non-profit company founded in 1956 and headquartered in Turlock, California.

Members supply critical medical data to the organization and receive a distinctive metal bracelet or necklace tag which is worn at all times.

Congenital adrenal hyperplasia due to 21-hydroxylase deficiency

Congenital adrenal hyperplasia due to 21-hydroxylase deficiency, in all its forms, accounts for over 95% of diagnosed cases of congenital adrenal hyperplasia (CAH), and CAH in most contexts refers to 21-hydroxylase deficiency and different mutations related to enzyme impairment have been mapped on protein structure.

Deficient 21-hydroxylase can lead to accumulation of 17α-hydroxyprogesterone
21-hydroxylase CAH is inherited in an autosomal recessive fashion.
Human steroidogenesis, showing 21-α hydroxylase at upper center, with pathways to aldosterone and cortisol at right, and pathways to androgens at left

As an additional precaution, persons with adrenal insufficiency are advised to wear a medical identification tag or carry a wallet card to alert those who may be providing emergency medical care of the urgent need for glucocorticoids.

Karolina Dean

Fictional superhero appearing in American comic books published by Marvel Comics.

Karolina's twisted dream.
Karolina in her true Majesdanian form. Art by Adrian Alphona

Alex convinces her to remove her medic alert bracelet because it is emblazoned with the symbol.

Diabetic coma

Life-threatening but reversible form of coma found in people with diabetes mellitus.

Universal blue circle symbol for diabetes.

An example might be a physician working in an emergency department who receives an unconscious patient wearing a medical identification tag saying DIABETIC.