Chapter 1: Introduction to Disease Flashcards
Homeostasis
Stable internal environment in changing external environment. An example would be that our bodies maintain a 98 degree temperature in a hot or cold room.
Disease
Deviation from homeostasis
Pathology
Path: disease
Ology: study of
Study of structural and forensic changes caused by disease.
Signs
Example
Something observable. An example would be a doctor recording your vitals.
Symptoms
Example
May not have signs and cannot see. An example would be abdominal pain or a headache. The patient feels it, but no one can see it occurring.
Syndrome
Example
Collection of sings and symptoms. An example would be HIV/AIDS.
Disorder
Example
Not linked to a cause. An example would be autism or ADHD.
Physical Exam
Given by doctor or medical professional. They observe you to make sure you are healthy. They would take vitals, look at posture, coloring, etc.
Palpation
‘Palp’ is so intense you can feel it. Applying pressure to observe patient’s reaction and look for indications.
Auscultation
Listening. Stethoscope would be an example.
Percussion
Tapping. Medical professionals can tell the size of organs, fluids, etc.
Electrocardiography (ECG)
reads the heart’s electrical impulses
Radiography
X-Rays to visualize internal structures
Computed Tomography (CT)
Scan uses computers and x-rays to create 3D images of internal structures
Magnetic Resonance Imaging (MRI)
Analyzes tissue responses to a strong magnetic field to create images of internal structures
Ultrasound
Analyzes the interaction of low-frequency sound waves with tissues to create moving images of internal structures
Nuclear Medicine
Uses radioactive materials to create contrast in the body and help form images of the structure and function of organs
Prognosis
Predicted course and outcome. May state the chances for complete recovery, predict the permanent loss of function, or probability of survival.
Acute
Type of disease that has sudden onset and short duration. Example would be influenza