A contraindication (pronounced as contra-indication) is a condition or factor that speaks against a certain measure. It is mostly used in medicine, with regard to factors that increase the risks Risk concerns the deviation of one or more results of one or more future events from their expected value. Technically, the value of those results may be positive or negative. However, general usage tends to focus only on potential harm that may arise from a future event, which may accrue either from incurring a cost or by failing to attain some involved in using a particular drug A pharmaceutical drug, also referred to as medicine, medication or medicament, can be loosely defined as any chemical substance intended for use in the medical diagnosis, cure, treatment, or prevention of disease, carrying out a medical procedure, or engaging in a particular activity.
Some contraindications are absolute, meaning that there are no reasonable circumstances for undertaking a course of action. For example, a baby with a fever should never be given aspirin Aspirin , also known as acetylsalicylic acid (pronounced /əˌsɛtəlˌsælɨˈsɪlɨk/ ə-SET-əl-sal-i-SIL-ik, abbreviated ASA), is a salicylate drug, often used as an analgesic to relieve minor aches and pains, as an antipyretic to reduce fever, and as an anti-inflammatory medication because of the risk of Reye's syndrome Reye's syndrome is a potentially fatal disease that causes numerous detrimental effects to many organs, especially the brain and liver, as well as causing hypoglycemia. The exact cause is unknown, and while it has been associated with aspirin consumption by children with viral illness, it also occurs in the absence of aspirin use, and a person with an anaphylactic Anaphylaxis is an acute multi-system severe type I hypersensitivity reaction. The term comes from the Greek words ἀνά ana and φύλαξις phylaxis (protection) food allergy A food allergy is an adverse immune response to a food protein. They are distinct from other adverse responses to food, such as food intolerance, pharmacological reactions, and toxin-mediated reactions should never eat the food to which they are allergic. Similarly, a person with hemochromatosis Historically, the term haemochromatosis was initially used to refer to what is now more specifically called haemochromatosis type 1 (or HFE-related hereditary haemochromatosis). Currently, haemochromatosis (without further specification) is mostly defined as iron overload with a hereditary/primary cause, or originating from a metabolic disorder should not be administered iron preparations.
Other contraindications are relative, meaning that the patient is at higher risk of complications, but that these risks may be outweighed by other considerations or mitigated by other measures. For example, a pregnant woman should normally avoid getting X-rays X-radiation is a form of electromagnetic radiation. X-rays have a wavelength in the range of 0.01 to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (3 × 1016 Hz to 3 × 1019 Hz) and energies in the range 120 eV to 120 keV. They are shorter in wavelength than UV rays and longer than gamma rays. In many, but the risk may be far less than the risk of not diagnosing or being able to treat a serious condition such as tuberculosis Tuberculosis or TB is a common and often deadly infectious disease caused by various strains of mycobacteria, usually Mycobacterium tuberculosis in humans. Tuberculosis usually attacks the lungs but can also affect other parts of the body. It is spread through the air, when people who have the disease cough, sneeze, or spit. Most infections in or a broken bone. Relative contraindications may also be referred to as cautions, such as in the British National Formulary The British National Formulary contains a wide spectrum of information on prescribing and pharmacology, among others indications, side effects and costs of the prescription of all medications available on the National Health Service. It is used by general practitioners and specialist practitioners, and by other prescribers (such as nurses,.
See also
- Classification of Pharmaco-Therapeutic Referrals The Classification of Pharmaco-Therapeutic Referrals is taxonomy, focused to define and group together situations requiring a referral from pharmacists to physicians (and vice versa) regarding the pharmacotherapy used by the patients. It has been published in 2008. It is bilingual: English/Spanish (Clasificación de Derivaciones Fármaco-terapé
- Drug reaction testing Drug reaction testing uses a genetic test to predict how a particular person will respond to various prescription and non-prescription medications. It checks for genes that code for specific liver enzymes which activate, deactivate, or are influenced by various drugs
- Indication (medicine) In medicine, an indication is a term describing a valid reason to use a certain test, medication, procedure, or surgery. In the United States, indications for medications are strictly regulated by the Food and Drug Administration, which includes them in the package insert under the phrase "Indications and Usage". The opposite of
References
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