Microbiology: An Introduction, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition)
13th Edition
ISBN: 9780134729336
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 15, Problem 3A
Summary Introduction
Introduction:
ID 50 means INFETIOUS DOSE 50. This means number of micro-organisms is needed to infect the host. In laboratory the rats are injected with the prescribed dose of organism and they are examined. This salmonella obtains energy from
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Create a bar graph to demonstrate the zones of inhibition for each antibiotic. Use the data table from the average. Make sure all elements that make up a good bar graph are included.
Explain how the Kirby-Bauer test works and what information it provides. Define minimum inhibitory concentration (MIC). Describe how the E-test works and what information it provides.
A hospital pharmacy has available 2-mL prefilled syringes containing 80 mg of tobramycin and 1.5-mL prefilled syringes containing 60 mg of tobramycin. The syringes are calibrated in 0.25-mL units. Explain how you would prepare a medication order calling for 110 mg of tobramycin to be added to 100 mL of D5W for intravenous infusion.
Chapter 15 Solutions
Microbiology: An Introduction, Books a la Carte Plus Mastering Microbiology with Pearson eText -- Access Card Package (13th Edition)
Ch. 15 - Compare pathogenicity with virulence.Ch. 15 - How are capsules and cell wall components related...Ch. 15 - Prob. 3RCh. 15 - Explain how drugs that bind each of the following...Ch. 15 - Prob. 5RCh. 15 - Prob. 6RCh. 15 - Prob. 7RCh. 15 - Which of the following genera is the most...Ch. 15 - How can viruses and protozoa avoid being killed by...Ch. 15 - Prob. 10R
Ch. 15 - The removal of plasmids reduces virulence in which...Ch. 15 - Prob. 2MCQCh. 15 - Prob. 3MCQCh. 15 - All of the following can occur during bacterial...Ch. 15 - The ID50 for Campylobacter sp. is 500 cells; the...Ch. 15 - Prob. 6MCQCh. 15 - A drug that binds to mannose on human cells would...Ch. 15 - The earliest smallpox vaccines were infected...Ch. 15 - Prob. 9MCQCh. 15 - Which of the following statements is true? a. The...Ch. 15 - Prob. 1ACh. 15 - Prob. 2ACh. 15 - Prob. 3ACh. 15 - How do each of the following strategies contribute...Ch. 15 - On July 8, a woman was given an antibiotic for...Ch. 15 - Explain whether each of the following examples is...Ch. 15 - Cancer patients undergoing chemotherapy are...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Cimetidine is used in the treatment and management of gastric ulcers and gastroesophageal reflux disease. In the case of an active ulcer, cimetidine can be administered continuous by IV infusion at a dose rate of 37.5 mg/hr. If the concentration of the cimetidine solution is 6 mg/ml, then how many milliliters must be available for a 4-hr infusion?Misoprostol is used to prevent NSAID-induced gastric ulcers. A daily dose consists of two tablets administered four times each day. What is the size of one day’s dose if each tablet contains 100 mcg of misoprostol?arrow_forwardWhat is the experimentally-determined minimum inhibitory concentration of the antibiotic being tested in this picture, based on the results shown in the picture? 0.06 0.125 0.25 1.0 μg/ml 8.0 µg/ml 0.5 µg/ml ○ 0.06 µg/ml µg/ml 0.5 1.0 2.0 4.0 8.0arrow_forwardA culture of S. cerevisea has an overnight OD of 2.3 (1.0 OD is approx 1.0x107 cells/ml) You will be plating 100µl onto agar and want the final count of colonies on the plate to be around 300 colonies. How much of the 2.3 OD culture must you use to get a 500µl subdilution (with sterile water), so that you have diluted enough to get approx 300 colonies per 100ularrow_forward
- A prescription order calls for 1.25 g of vancomycin in 500 mL of NS (0.9%/100mL). After reconstitution vancomycin injection is available in a strength of 50 mg/mL. How many mL of vancomycin injection should be drawn up to prepare this prescription?arrow_forwardThis is a walk-through of Minimum Inhibitory Concentration, MIC: This tray has 8 rows, 4 for Staphylococcus aureus (SA) and 4 for Methicillin-Resistant S. aureus (MRSA). Each row has 12 compartments, or wells. The wells have different concentrations (ug/ml) of the antibiotic Oxacillin in them. From Left to Right, the concentration of Oxacillin is going down acillin concentration, pg/ml 64 32 16 8 4 2 1 0.5 0.25 0.13 0.06 0 SA dn The same amount of S. aureus broth culture is added to each well and the tray is incubated. A color change shows that S. aureus grew in a given well. MRSA What is the lowest concentration at which SA is inhibited (does not grow)? 64mg/ml What is the lowest concentration at which MRSA is inhibited? What is the MIC for Oxacillin vs SA? What is the MIC for Oxacillin vs MRSA? - Notes Comments 33°Farrow_forwardThe phenol concentration of wastewater was determined from three (3) parallel determinations, giving a mean of 0.513 μg L-1 and a standard deviation of 0.05 μg L-1. Decide at a risk level of 5% (or a confidence level of 95%) whether a reference value of 0.520 μg L-1 is statistically different.arrow_forward
- Given this, if you used 6g of vitamin Z powder to make 20 ml of solution, what is the % concentration of this solution? (I gave the image since I don't know if that info is needed to solve this question.)It also gives a follow-up, if you can help here too: You work in a lab as a summer student. One of your tasks is to make sure that there is enough cell culture medium containing antibiotics to grow bacteria. One day you realize that there is only 5 ml of 10% Antibiotic stock solution in the freezer. You decide to use it all to prepare the working culture medium with 0.01% antibiotic. In the lab there is plenty of growth medium without antibiotics. (Note: dilution in medium is like dilution in water). You remember the equation to make dilutions of stock solutions. You usually use this formula to calculate the required volume of a stock solution, but you realize it can apply here as well, even though the unknown is the final volume. So, you make that dilution. Given that each bacterial…arrow_forwardIf each agar plate contained 20 ml of LB agar and had an ampicillin concentration of 150 ug/ml, what is the approximate amount of ampicillin (grams) in each plate?arrow_forwardCaffeine and paracetamol have retention times of 11.80 and 13.25 min, respectively, on a 25.0-cm C18 column. An unretained species passes through the column in 1.15 min. The peak widths for caffeine and paracetamol are 1.01 and 0.95 min, respectively. Calculate the average number of plates in the column.arrow_forward
- rug-B has an elimination half-life of 9 hours, an absorption half-life of 20 minutes and linear harmacokinetics. In a patient, the plasma concentration five hours from the administration of two 60 mg cablets of the drug is 8 ug/mL. What would you expect to be the plasma concentration five hours from the administration of one 60 mg tablets? 1 ug/mL Answer 1-1arrow_forwardA 250 mL IV solution contains 25,000 units of heparin. The desired dosage is 8 units/kg/hr. The patient weighs 220 Ibs. The drop factor is 60 gtts/mL.. How many units of heparin are in 5 mL of solution? (Hint: how many are in 1 mL? Now, how many are in 5?)arrow_forwarda. Using table as a reference, find and explain the differencesbetween the results for Staphylococcus and Pseudomonas. Are anyof these drugs broad spectrum?b. Explain the difference in the MIC of E. coli for penicillin versusampicillin.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
