Log in
Biology
1
answer
0
watching
164
views
3 Mar 2018

Sonya, an active preschooler attends a day care center while her mother works days. She awok one weekend complaining of a sore throat. Her mother niticed a low grade fever and inflamed tonsils

Watch
1
answer
0
watching
164
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Casey Durgan
Casey DurganLv2
3 Mar 2018

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share

Related textbook solutions

Molecular Cell Biology
8 Edition,
Lodish
ISBN: 9781464183393
Biology: Science for Life with Physiology
6 Edition,
Belk
ISBN: 9780134555430
Concepts of Biology
OER Edition,
Openstax
ISBN: 9781938168116
Biology
2nd Edition, 2013
Openstax
ISBN: 9781947172517
Essentials of Biology
5 Edition,
Mader
ISBN: 9781259660269

Related questions

A patient comes to see you, complaining of a very sore throat. When you examine her, you find that she has a fever of 39-degree Celsius, and you observe that her throat is extremely red, with pus on her tonsils. You swab the pus and make a slide, which you then send to the clinical lab for Gram staining. The lab sends back a report in which it is noted that the slide has many long chains of round cells that have stained purple in color. you inform the patient that the result of the gram stain indicate to you that the bacteria in her throat are ____ in shape, and have a ____ cell wall

1) round; thin

2) cylindrical; thick

3) round; thick

4) spiral; thick

5) cylindrical; thin

Delia, a five-year-old, woke up one morning complaining that she had a sore throat, headache and stomachache. Her tonsils appeared swollen, and a tonsular exudate, appearing as a cream-colored pus, was evident upon examining the child’s oropharynx. Her mother also took Delia’s temperature and noted the girl was running a low-grade fever. Suspecting strep throat (streptococcal pharyngitis), her mother made an appointment with the pediatrician.

The doctor first performed a rapid strep test, which works by detecting certain cell surface proteins on group A streptococci (GAS). This test is inexpensive and can detect GAS in a matter of minutes. However, rapid strep tests that come back negative are not especially reliable; about five out of every 100 patients with streptococcal pharyngitis will have a negative rapid strep test result. Therefore, despite Delia’s rapid strep test being negative, the doctor went ahead and ordered a bacterial culture. This was a wise decision because Delia had signs and symptoms that pointed to a case of streptococcal pharyngitis caused by the Gram-positive, nonmotile, encapsulated prokaryote Streptococcus pyogenes.

When cultures to detect S. pyogenes are performed, the patient’s sample (in this case a swab of the throat) is streaked out onto a specialized nutrient-rich agar called blood agar. Actively growing S. pyogenes can break down red blood cells (a process called beta hemolysis), and, therefore, is readily detectable on blood agar plates because a clear zone develops around its colonies. Based on the microbiology data that came back, Delia was treated for streptococcal pharyngitis. After 48 hours on an antibiotic, Delia felt much better and returned to school.

QUESTION: Assuming that Delia is not allergic to penicillin-based drugs, would a penicillin-family drug (amoxicillin, for example) typically be effective against S. pyogenes?

A. Penicillin-based drugs would effectively target the thick peptidoglycan layer within the pathogen’s cell wall.
B. Penicillin-based drugs would be ineffective since the cell wall of S. pyogenes does not contain peptidoglycan.
The porins within the pathogen’s outer membrane would exclude penicillin-based drugs, rendering these antimicrobials C. ineffective.
D. Penicillin-based drugs would effectively target the mycolic acids present in the pathogen’s cell wall.

Claire is a healthy 19 year-old college freshman enjoying her first few weeks of being on a college campus. She’s made lots of new friends, has been participating in many of the on-campus outdoor social activities, and is getting used to a hectic class schedule. For the last couple of days, she’s been feeling more tired than usual, and she’s had a sore throat. Her sore throat has been worsening, and she also has a low-grade fever and a headache that has been getting worse throughout the day. Although Claire thinks that her symptoms are due to exhaustion, Claire’s roommate urges her to go the student health center just to make sure that it’s nothing too major. At the student health center, Claire is examined by Dr. Peterson. She takes a routine medical history and does some basic assessment of Claire’s condition including listening to her heart and lungs, checking her ears and eyes (for light responsiveness), looking at her throat, and feeling the lymph nodes in Claire’s neck. Claire expects that Dr. Peterson is going to tell her to go home, drink plenty of liquids, and get lots of rest and that she’ll be back to normal in a couple of days. Instead, Claire is surprised when Dr. Peterson tells her that there have been a couple of cases of meningitis reported in students living in Claire’s dorm and she would like to do further tests for meningitis. Claire informs Dr. Peterson that she has received the vaccine for meningitis. Although Dr. Peterson tells Claire that this is a good thing, she informs Claire that they need to conduct further tests to confirm the causative agent and proceed with treatment.

Weekly leaderboard

Home
Homework Help 3,900,000
Biology 460,000
Start filling in the gaps now
Log in