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For example, the British National Formulary uses the cautions versus contraindications pair, and various U.S. CDC webpages use precautions versus contraindications. The logic of the latter two styles is the idea that readers must never be confused: the word contraindication in that usage always is meant in its absolute sense , providing ...
In terms of contraindications associated with LA there are "absolute" and "relative" contraindications. When something is said to have an "absolute" contraindication this underlines that under no circumstance would that LA be selected to administer to that specific patient as it poses a potential life-threatening risk e.g. allergy.
The foremost absolute contraindication to canthotomy is globe rupture, sometimes referred to as an open globe injury. [9] Globe rupture can be recognized by these symptoms or physical exam features: Irregular-shaped pupil or iris; Subconjunctival hemorrhage; Enophthalmos; Conjunctival or scleral tear
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Few absolute contraindications exist, however, "relative contraindications are important and can only be considered following a full assessment." [ 4 ] They include: Medical conditions that would compromise the inhalation of the sedation medication, such as the common cold , tonsillitis , severe COPD or nasal blockage
Absolute contraindications, which are reasons why the procedure absolutely cannot be done, include: [9] Pregnancy is an absolute contraindication to the use of breast irradiation . In some cases, it may be possible to perform breast-conserving surgery in the third trimester and treat the patient with radiation after delivery.
A dilated fundus examination is typically contraindicated in situations where mydriatic eye drops are contraindicated. Absolute contraindications include: [8] History or suspicion of cerebrovascular or neurologic disease (head injury, coma, etc.) due to the need for continual reassessment of pupillary reactions; Iris clip intraocular lens implants
Commonly cited absolute contraindications to shock wave lithotripsy (SWL) include pregnancy, coagulopathy or use of platelet aggregation inhibitors, aortic aneurysms, severe untreated hypertension, and untreated urinary tract infections.