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A critically ill patient in hospital who requires fluid replacement is given a
large infusion of hypertonic saline by mistake. What would be the likely
result of this? - ANSWER ✔✔Hypertonic saline would cause water to
move out of the patient's cells into the blood, resulting in cell shrinkage.
If this occurred in the brain, then brain function would be compromised.
A menopausal woman who eats a well-balanced diet with adequate
vitamins and minerals is showing signs of mild osteoporosis. Which of
the following changes is likely to be the most beneficial in terms of
,reversing this? - ANSWER ✔✔An exercise regime of daily
walking/jogging, to increase stress on the bones
A patient has suffered central nervous system damage after a car
accident. This could mean that there was direct damage to: -
ANSWER ✔✔the brain and/or the spinal cord
Anxiety disorders are becoming increasingly common in our society, and
may also be helping to increase the incidence of a number of other
illnesses such as heart disease, infections and cancer. What is the most
likely link between anxiety and these other diseases? - ANSWER
✔✔An anxious state of mind results in an increase in the release of the
stress hormone cortisol. This hormone also suppresses immune
function, leaving an individual more vulnerable to infections and cancers.
Body fluids such as blood and intracellular fluid have their pH strictly
controlled. There are some body fluids, however, that are acidic. In
which of the following locations would you expect to find strongly acidic
fluids and what would the purpose be ? - ANSWER ✔✔the stomach,
to destroy incoming organisms
If a person does some very intense exercise, what is likely to happen to
the acidity of their blood? - ANSWER ✔✔The pH will go down slightly,
meaning the fluids are more acidic
, Patricia is suffering from emphysema which is limiting gas transfer in her
lungs. Her arterial oxygen is low and her arterial carbon dioxide is high.
However, the acidity of her arterial blood is still within normal limits. What
is Patricia's body doing to keep the pH within normal limits? -
ANSWER ✔✔Patricia's kidneys will be excreting more acid to
compensate for the high arterial carbon dioxide level.
People who suffer from asthma attacks are sometimes taught to breathe
out through a small tube while they are having an attack. What good
would this do? - ANSWER ✔✔The narrow tube would cause the air
pressure inside the airways to increase, preventing the collapse of small
airways during expiration.
Premature babies may deveop great difficulty breathing immediately
after birth, and have to make huge efforts to breathe - a condition known
as infant respiratory distress syndrome. If this occurred, they would be
given a particular drug via a breathing tube. What would this drug do? -
ANSWER ✔✔It would reduce the surface tension in the alveoli of the
lungs, allowing the babies to inflate their lungs more easily
Soft bones (osteomalacia) and rickets can be a problem in people who
keep their entire skin surface covered most of the time, for example,
muslim women who wear a burka. Why would this be? - ANSWER
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