VBS 2032 EXAM 4 QUESTIONS AND ANSWERS 100%

VBS 2032 EXAM 4 QUESTIONS AND ANSWERS 100% Blood agar plates can detect the presence of this virulence factor: hemolysin What is the key reason why there is no effective vaccine against Streptococcus pyogenes? the number of antigenic variants Septic shock is characterized by: -organ damage -activation of complement This is sometimes elevated in urine when Gram-negative bacteria infect the bladder. nitrite These two laboratory tests are used to detect different sugar fermentation byproducts: methyl red (MR) and Voges-Proskauer (VP) The gland that secretes tears is called: lacrimal Most upper respiratory tract infections are cause by: viruses The host specificity of a flu virus is dependent on the hemagglutinin type. TRUE A hospital-acquired pneumonia that is characterized by red sputum and is often resistant to treatment with common antibiotics is likely caused by: Klebsiella pneumoniae The characteristic hot, cold, wet paroxysms of malaria are the result of: production of reproductive gametocytes Which of the following commonly indicate the presence of a urinary tract infection? -blood (BLO) -Nitrite (NIT) -LEU (leukocytes) Coronaviruses are responsible for: -some forms of the cold -MERS -COVID-19 We have a vaccine that protects people against: -RSV -strep throat -strep pneumonia -legionella pneumonia Pneumococcal (Strep) pneumonia -- MOST common cause of serious cases An alpha hemolytic coccus would produce________ around a colony on a blood plate and would appear ______ shaped under the microscope. a green halo; spherica