Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

Username is available taken
show password

Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Microbiology Chap.17

Diagnosing Infections

Identifying the infectious agent *sample collection *Phenotypic analyses *Genotype analyses *Immunological analyses
What is Phenotypic Analyses? the physical analyse of identifying the infectious agent examples : Morphology, Biochemistry (the makeup), and Chemical analyses Phenotypic Methods have Physiological/Biochemical characteristics
What is the Genotype Analyses? the genetic makeup (DNA) analyse of identifying the infectious agent
Phenotypic Method: Microscopic Morphology *Cell shape and size *Gram stain reaction *Acid fast reaction *Special structures
Phenotypic Method: Macroscopic Morphology *Colony appearance *Speed of growth *Patterns of growth
Phenotypic Method: Chemical Analysis Analyzing the types of specific structural substances that the microorganism contains Examples: Chemical composition of peptides in the cell wall and lipids in membranes
What are the Physiological/Biochemical characteristics? *traditional mainstay of bacterial identification *diagnostic tests for determining the presence of specific enzymes and assessing nutritional and metabolic activities
What are some examples of Physiological/Biochemical characteristics? *Fermentation of sugars *capacity to metabolize complex polymers *production of gas *presence of enzymes *sensitivity to antimicrobial drugs
Genotypic Methods *Primary advantage over phenotypic methods --actual culturing the microorganisms is not always necessary *Increasingly automated with results obtained very quickly
Do you have to culture in the Genotypic Method? No
Immunological Methods *Antibody response to antigen *Blood testing-easier then testing for microbe itself *Lab Kits available for immediate identification of a number of pathogens
First Laboratory Techniques *Direct tests using microscopic, immunologic, or genetic methods along with signs and symptoms *Provide immediate clues
Second Laboratory Techniques *Cultivation, isolation, and identification of pathogen using a wide variety of general and specific tests
Results Laboratory Techniques: Presumptive data place isolate in a preliminary category such as genus *educated guess but can treat because of genus
Results Laboratory Techniques: Confirmatory data provide more definitive evidence of a species *enough evidence for genus and species
Created by: Jervetteg
Popular Biology sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards