PLTW - Medical Interventions Final Exam Study Guide| Complete Solution Guide| A+ Rated| Updated 2024-2025
What is a medical intervention?
Any measure whose purpose is to improve health or alter the course of a disease
What are the main categories of interventions that function to maintain human
health?
Treatments, Diagnostics and Equipment
How do scientists gather evidence during the potential outbreak of an infectious
disease?
1. Record patient's symptoms and find similarities with other patients
2. Isolate the bacteria in a lab
3. Go to affected areas and determine the origin of the disease
4. Identify the disease using DNA sequencing since pathogens alter certain DNA
sequences
What is bioinformatics?
The collection, classification, storage, and analysis of biochemical and biological
information using computers. (Especially applied in molecular genetics and
genomics)
How can DNA sequences be used to identify disease pathogens?
You can observe mutations and abnormalities that disease pathogens have
What is an antibody?
A blood protein in the body produced by B-cells (B-Lymphocytes) that fight
against a foreign substance by recognizing a specific part of it.
How do antibodies identify and inactivate antigens?
1. Shape recognition
2. Proteins of the antigens are configured to specific antibodies, so the foreign
antigens bind to the specific antibodies that inactivate them
How can the ELISA assay be used to detect disease?
1. Primary antibodies attach to specific antigen
2. Secondary antibody attaches to primary antibody
3. When enzyme substrate is added, color change occurs
Why is it important for doctors to know the concentration of the disease antigen
present in a patient's system?
Higher concentration = closer to patient zero
Patient Zero
The first person to be infected with a particular disease
What steps do scientists take to diagnose, treat, and prevent future spread of a
disease outbreak?
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