00:00
Now, one of the good
things about lung disease
is actually, we can measure the function of
the lungs. We can visualize the anatomy of
the lungs. And we can biopsy or access almost
every part of the lung if we need to. So it's
very accessible for investigations, and this
slide gives an overview of the types of investigations
that are done. So if we want to look at the
anatomy of the lung, then we can do chest
x-rays, CT scans, other types of radiologic
investigation, but we can also visualize directly
the bronchial tree by doing a bronchoscopy.
We can use blood tests to assess immunological
function, and that may be relevant for lung
disease—so, for example, with hypersensitivity
pneumonitis due to bird fancier's lung, we
can measure antibodies that say that that
person is allergic to antigens produced by
birds, for example. And we can genetically
test for diseases such as cystic fibrosis.
And if we want, we could obtain samples from
different parts of the lung—the easiest
sample being sputum, which is produced by
the patient themselves. But then if the patient's
not able to produce sputum, we can do a bronchoscopy
get a sample from deep
within the lungs directly, and we can biopsy
different parts of the lung either through
the bronchoscope or through CT- or ultrasound-guided
biopsies approaching the lung from the outside
in. And finally, if we need to, there are
surgical approaches for either treating patients
by removing the affected part of the lung
or getting a biopsy of the affected part of
the lung to get a clearer diagnosis about
what the problem may be that's affecting the
patient. So overall, compared to some diseases,
we're much more able to assess the lung using
investigations to fully identify exactly what
the disease may be that's affecting the patient.
So respiratory disease is a very common problem.
01:43
It's actually very varied. It covers tumors,
infection, airways disease, unusual infiltrations
of the lung. And it's important that you…
that every doctor has a reasonable understanding
of respiratory medicine and the major diseases
that affect the lungs, such as asthma, COPD,
cancer, pneumonia, tuberculosis, pulmonary
emboli. In the course, I will describe each
of those disease… diseases in detail and
will give the student a feel for how these
diseases present and the best approach to
making a diagnosis and this… the normal
treatment of those conditions. I will touch
on the rarer lung conditions as well so that
the student can understand how they fit into
the diagnostic schema when assessing a patient.
02:32
There's an emphasis in the course on good
clinical skills: how to take a good history,
how to interpret that history, how to interpret
the examination findings, and how to relate
those to potential pathologies that might
be present. Because examination and history-taking
are the basis of all clinical interaction
with the patient, and the ability to do those
well allows the doctor to interpret what's
happening to the patient much more accurately.
03:02
And although the investigations are very effective
and very powerful, they are not of any use
unless they are placed within the clinical
context, and that requires good clinical skills.