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Ischiorectal abscess

Advanced Reference: May be due to spasm, disease of the blood vessels or failure of the general circulation. If prolonged, the affected tissue dies. A common example is myocardial ischaemia, which occurs when the heart muscle receives inadequate blood supply.

Ischiorectal abscess Quick Reference: (isio-rectal) An abscess occurring between the rectum and ischium (lower posterior part of the pelvis).

Advanced Reference: Normally involves pus formation in the connective tissue often resulting in anal fistula.

Islets of Langerhans Quick Reference: Specialised cells found within the pancreas.

Advanced Reference: A cluster of cells in the pancreas which produces insulin and glucagon, and are released directly into the circulation where they play a part in glucose metabolism.

Isoflurane Quick Reference: A volatile anaesthetic agent.

Advanced Reference: A colourless liquid that allows rapid induction and recovery from anaesthesia.

Isograft Quick Reference: Type of graft.

Advanced Reference: A graft or transplant carried out between identical individuals.

Isolation Quick Reference: Separation of an infective patient from others.

Advanced Reference: Usually involves an isolation ward or area with the intention of preventing the spread of infecting organisms. Also used for patients with a deficient immune system. The technique is called barrier nursing.

Isoprenaline Quick Reference: Cardiac stimulant closely related to adrenaline, e.g. saventrine.

Advanced Reference: Increases both the heart rate and force of contraction. May also be used in treating bronchospasm. Used to treat extremely slow heart rate. Sometimes referred to as a chemical pacemaker.

^ Isopropyl Quick Reference: C3H8O. Clear, colourless alcohol.

^ Advanced Reference: Used as a 70% solution for skin prepping and clean-

ctic ing in theatres.

■g Isotonic Quick Reference: Refers to solutions which have the same osmotic

J pressure as plasma.

<5 Advanced Reference: Normal saline (0.9% NaCl) is isotonic with plasma, o this means that it will not draw fluid from tissues nor be absorbed into

^ them. Hypertonic solutions will withdraw fluid from the tissues and aert hypotonic solutions will be drawn into them.

Diabetes 2

Diabetes 2

Diabetes is a disease that affects the way your body uses food. Normally, your body converts sugars, starches and other foods into a form of sugar called glucose. Your body uses glucose for fuel. The cells receive the glucose through the bloodstream. They then use insulin a hormone made by the pancreas to absorb the glucose, convert it into energy, and either use it or store it for later use. Learn more...

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