Anaesthesia and Analgesia - Glossary Flashcards
Anaesthesia
loss of feeling or sensation in a part or the whole of the body; usually drug induced.
Analgesia
the relief of pain without causing unconsciousness
Anticholinergic
a drug that inhibits the action of acetylcholine
Apnoea
cessation of respiration
Arrythmia
variation from the normal rhythm of the heart.
Ataractic
a tranquilliser
Auscultation
examination of the internal organs by listening to their sound.
Basal narcosis
a state of unconsciousness produced prior to surgical anaesthesia.
Blood brain barrier
the membranous barrier that separates blood from the brain; it is permeable to water, oxygen, carbon dioxide, glucose, alcohol, general anaesthetics and some drugs.
Bradycardia
abnormally low heart rate
Bradypnoea
abnormally low respiratory rate.
Cardiac tamponade
impairment of the heart function by haemorrhage or effusion into the pericardium.
Cyanosis
blue-grey mucous membranes; a sign of inadequate oxygenation of the blood.
Defibrillation
the restoration of normal heart rhythm in ventricular or atrial fibrillation.
Defibrillator
an instrument which restores normal heart rhythm by the application of a high voltage electric current.
Diuresis
increased excretion of urine.
Dyspnoea
laboured breathing
Dysrhythmia
disturbance of a regularly occurring pattern
Epidural
outside the dura mater. Epidural analgesia is a form of pain relief obtained by the injection of a local analgesic into the epidural space in order to block the spinal nerves
Hypercapnia/hypercarbia
excess blood carbon dioxide
Hyperpnoea
hyperventilation.
Hypertension
persistently high blood pressure.
Hypotension
persistently low blood pressure
Hypoventilation
shallow breathing at a very slow rate which may cause a build up of carbon dioxide in the blood.
Hypoxia
inadequate oxygen in the tissues
Laryngospasm
a reflex prolonged contraction of the laryngeal muscles; this may be associated with the clumsy passing of endotracheal tubes
Narcotic
a drug that produces narcosis (unnatural sleep)
Neurolept
a drug which acts upon the nervous system
Poikilothermic
describes an animal which is unable to control its body temperature such as neonates and reptiles
Premedicant
drug/s given preoperatively in order to reduce fear and anxiety and to facilitate the induction, maintenance and recovery of anaesthesia.
Pulse deficit
a sign of atrial fibrillation; the pulse rate is slower than the apex beat.
Sedative
a sleep inducing drug; used to lessen excitement and reduce tension.
Soporific
sleep inducing
Syncope
fainting
Tachycardia
a higher than normal heart rate
Tachypnoea
a higher than normal respiratory rate
Tracheostomy
a permanent or long term surgical opening into the trachea
Tracheotomy
a temporary opening into the trachea.
Tranquilliser
a drug that allays fear and anxiety without inducing sleep