What is the definition of biofilm?
a. An implantable meshlike tissue that helps prevent adhesions in the peritoneum
b. A clear spray used on sterile instruments to keep infection rates low
c. A collection of microorganisms that develops on the surfaces of implanted medical devices
d. A patient-specific picture of organs or body tissues that define a disease process
ANS: C
Biofilm forms when bacteria and microorganisms adhere to moist material (medical devices such as catheters, artificial joints, and heart valves) and create a barrier against antibiotic treatment, thereby creating a persistent disease state.
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When working with high-pressure cylinders, it is important to keep safe usage in mind, such as:
A. use tape to label cylinders. B. have aluminum cylinders hydrostatically tested every 10 years. C. store reserve oxygen cylinders in a warm, ventilated room. D. tighten all valves and connections hand-tight only.
Which of the following statements is true regarding the Haldane effect?
a. At high SaO2 levels, carbon dioxide more readily forms carbamino compounds. b. At high SaO2 levels, the capacity of blood to hold carbon dioxide decreases. c. At high SaO2 levels, the capacity of blood to hold carbon dioxide increases. d. At low SaO2 levels, the capacity of blood to hold carbon dioxide decreases.
The point of intersection of the lambdoidal and squamosal suture is the:
pterion asterion bregma lambda
Boiling kills many microorganisms, but does not kill ____________________
Fill in the blank(s) with correct word