MIC 205 Respiratory diseases Exam Questions and Answers

MIC 205 Respiratory diseases Exam Questions and Answers one of the important functions of the normal biota of the upper respiratory system is __________ ________, which reduces the possibility of pathogens establishing themselves there - Answer-antagonism lower respiratory tract (4) - Answer-1. trachea 2. bronchi 3. alveoli 4. bronchioles S. pyogenes produces _______ whose action is to lyse red blood cells to release hemoglobin - Answer-streptolysin signs/symptoms of scarlet fever (2) - Answer-1. sandpaper-like skin rash 2. high fever who is most likely affected by scarlet fever - Answer-children most common portal of entry for pathogens - Answer-respiratory tract presence of viable bacteria in circulating blood - Answer-bacteremia first line defenses for the respiratory system (5) - Answer-1. mucus production 2. sneezing 3. nasal hair 4. ciliated epithelium 5. coughing recovery period from a disease when the numbers of the causative agent are decreasing and the symptoms have disappeared - Answer-convalescent period bacterial toxins that are potent stimuli for T cells causing an excessively strong reaction - Answer-superantigens because of its constant contact with the external environment, the upper respiratory tract harbors a ______ population of commensal biota (2) - Answer-1. diverse 2. large a blue discoloration of the skin or mucous membranes due to decreased oxygen in the blood often seen in Pneumocytitis pneumonia - Answer-cyanosis upper respiratory tract is composed of: (5) - Answer-1. nasal cavity 2. oral cavity 3. larynx 4. epiglottis 5. pharynx in the Ziehl-Neelsen acid-fast staining procedure, acid-fast organisms will appear what color - Answer-red streptococcus pyogenes causes scarlet fever when it has become infected with a - Answer-lysogenic bacteriophage general type of staining procedure that is used to diagnose the tuberculosis bacterium based upon its cell wall structure - Answer-acid-fast stain signs/symptoms of influenza (7) - Answer-1. sore throat 2. dry cough 3. fatigue 4. headache 5. stuffy nose 6. fever 7. body aches even though scarlet fever had a 95% fatality rate in the early 20th century, cases today are often - Answer-mild children are more susceptible to rhinitis because (3) - Answer-1. they have no secondary immunity to rhinoviruses 2. their immune systems are immature 3. each virus they encounter is a new virus why do physicians distinguish between nosocomial and community-acquired pneumonia - Answer-they are caused by different types of bacteria diphtheria is easily prevented by - Answer-routine vaccination inflammation of the kidney - Answer-nephrititis