You have applied a nonporous dressing to a stab wound on a patient's chest. The Emergency Medical Responder assisting you asks you why the dressing was taped on three sides and not all four. Your best response is that taping the dressing on three sides:
A) Permits oxygen to still enter the lungs
B) Allows trapped air to escape on exhalation
C) Causes less pain for the patient
D) Decreases the chance of air entering the chest on exhalation
B) Allows trapped air to escape on exhalation
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Which of the following will provide 100 percent oxygen at a flow rate of 40 liters per minute?
A) Demand-valve oxygen-powered ventilation device B) Bag-valve mask device C) Transtracheal jet insufflator device D) Flow-restricted oxygen-powered ventilation device
Which type of muscle is found in blood vessels?
A. Voluntary C. Striated B. Cardiac D. Involuntary
The first factor to consider when choosing an extinguisher is ____.
A. the building where it will be used B. the capacity of the model C. the person using the extinguisher D. the type and amount of fuel present
A dark pigmented colony is isolated from the leg wound of a fisherman from Florida. The gram-negative rod grows on sheep blood and MacConkey agars. The organism provides the following reactions:
TSI: K/A Indole: no color change Lysine: no color change 1% NaCL: no growth Arginine: purple Ornithine: no color change DNase: pink halo around the area of organism inoculum The microbiologist cannot read the oxidase reaction due to the dark pigment. What can he do to help achieve a valid oxidase reaction? A) Grow the organism under anaerobic conditions and retest B) Grow the organism on a non-nutrient agar and retest C) The oxidase test is not necessary for the identification of this organism D) Perform a modified oxidase test