pst2235 exam quiz Flashcards
What does the term prodromal refer to when discussing disease characteristics?
Early stage of vague, non-specific symptoms
What is the difference between a sign and a symptom? give examples
signs = objective - Rash, tachycardia
symptoms = subjective - dizzy, nausea, pain
What is the name given to an increase in cell number via cellular division?
hyperplasia
What does the term apoptosis mean?
Programmed cell death
What are 2 characteristics of visceral pain?
referred and poorly localised
What is the name given to an area of skin innervated by a specific spinal nerve?
dermatome
Briefly define the term - iatrogenic
injury or disease caused by medical intervention or errors
when discussing disease,. what is the difference between incidence and prevalence?
incidence is the number of new cases, prevalence is the number of all cases
list 2 chemical mediators that are involved in inflammatory response
histamine, cytokines
what area of the brain is responsible for temperature control?
hypothalamus
what is the term given to the maintenance of a relatively constant internal environment?
homeostasis
what fluid shifts occur when a hypotonic solution is infused into a normally hydrated patient?
water will be drawn from the solution into the cells as the cells will have a higher solute concentration than the infused fluid
which hormone, secreted by the adrenal gland, stimulates the kidneys to reabsorb sodium and water? what effect would this have on blood pressure?
aldosterone
raises blood pressure
which substance is released by the juxtaglomerular cells of the kidney in response to reduce blood volume?
renin
an abnormal accumulation of water in the interstitial tissue is commonly referred to as what?
Oedema or swelling
which common electrolyte imbalance triggers the thirst reflex?
Hypernatraemia
life threatening arrhythmias are a severe consequence of which electrolyte imbalance?
hyperkalaemia
which hormone “pulls” calcium from bones and increases absorption?
parathyroid hormone
what is the name of the receptors that initiate a respiratory response to changes in pH?
chemorecepetors
which electrolyte is vital to support energy needs and oxygen transport?
phosphorus
how long do renal compensatory mechanisms take to adjust pH?
hours to days
which acid-based imbalance is characterised by an excess of non-carbonic acid (non-volatile)?
metabolic acidosis