Microbiology Final Exam Practice Questions 2022 (Answered) Verified Solution

Microbiology Final Exam Practice Questions 2022 (Answered) Verified Solution The skin lesion known as a vesicle is best described as: A. A small fluid-filled skin lesion B. A flat red lesion C. A pus filled lesion D. A reddish pus filled lesion E. None of the above A small fluid filled skin lesion Which of the following is NOT a characteristic of Streptococcus pyogenes - Cocci - Gram-positive - M proteins - Coagulase-positive - Beta-hemolytic Coagulase positive What characteristics can be used to identify S. pyogenes? Gram-positive cocci, Non-motile, Non-sporing Fastidious organism, Catalase negative, Group A Streptococci:, Bacitracin sensitive A carbuncle lesion is the result of an infection with _________________. Staphylococcus aureus Which microbes are known to cause bacterial meningitis? S. pneumoniae, N. meningitidis, H. Influenzae Type B What are the symptoms of meningitis? Fever; stiff neck; severe headache; vomiting or nausea with headache; confusion or difficulty concentrating; sensitivity to light; seizures; fatigue/difficulty waking up; loss of appetite; skin rashes (in some cases) A baby arrives at an emergency room suffering from violent muscles spasms and difficulty breathing. The baby's body is so rigid a proper exam is difficult, but the staff note that the baby is only a few weeks old and the umbilicus has not healed properly. The signs are consistent with which microbe we studied during this unit? Tetanus A 35 year old woman has a red, raised rash on the inside of her thighs. Gram-stained skin scrapings show large budding cells with pseudohyphae. The infection is caused by what? A. Candida albicans B. Herpes Simplex Virus C. Staphylococcus aureus D. Streptococcus pyogenes E. Varicella-zoster virus Candida albicans Someone with an irregular heart valves would have an increased risk for developing ____________. Endocarditis What's the etiological agent of rabbit fever? Francisella tularensis What's the etiological agent of anthrax? Bacillus anthracis What are three forms of anthrax? Cutaneous, pulmonary, gastrointestinal Which form of anthrax is the most deadly? Pulmonary anthrax Which form of anthrax is limited to the skin? Cutaneous anthrax How can you distinguish between the forms of anthrax? What are the virulence factors and morphological features associated with anthrax? Capsule and anthrax toxin List two diseases that have vector transmission in chapter 23 that were covered in the notes: Lyme Disease and Rocky Mountain Spotted Fever Necrotic tissue is at risk for developing the dangerous disease known ____________. Proper treatment would be _____________. Hint: Chapter 23 Cardio Which of the following statements about sepsis is false? A. Symptoms include fever and decreased blood purpose B. Lymphangitis may occur C. Symptoms are due to bacterial endotoxin D. It usually is caused by gram positive bacteria E. It may be aggravated by antibiotics It is usually caused by gram positive bacteria True or False? Rheumatic fever is commonly treated by antibiotics. Justify. True. Doctors treat symptoms of rheumatic fever with medicines like aspirin to reduce fever, pain, and general inflammation. In addition, all patients with rheumatic fever should get antibiotics that treat group A strep infections Which is not a characteristic of Streptococcus pyogenes? Explain. A. Group A Streptococcus B. Alpha hemolytic C. Bacitracin sensitive D. Gram-positive Alpha hemolytic List two possible routes transmission of the disease tularemia: Vector bites, aerosol transmission via dust/feces What kind of transmission is most dangerous for tularemia? Inhalation via dust/feces