How should an unconscious child be carried down a ladder?
a. the victim placed over the rescuer's shoulder, one arm holding the knees against the rescuer's chest
b. the victim supported at the crotch and chest by the rescuer's arm
c. the victim cradled across the rescuer's arms
d. the rescuer's arms under the victim's arms, the victim crotch on the rescuer's knee
Answer: c. the victim cradled across the rescuer's arms
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Poiseuille's law specifically states that blood flow through a vessel is directly proportional to the ________ of the vessel's radius
A) fourth power B) third power C) square D) tenth power
You are called to a construction site on a hot and humid day for a male patient suffering a heat emergency. On scene you find a 49-year-old man who is responsive to verbal stimuli. Coworkers state that the patient has been moving concrete blocks all day in the hot weather and has not rested, eaten, or had anything to drink in the past 2 hours. After conducting the primary assessment, you note his
airway to be open and breathing rapid but adequate. His radial pulse is rapid and bounding, and his skin is hot and dry. Which one of the following signs makes this patient a priority for immediate and rapid transport? A) Bounding pulse B) Altered mental status C) Hot and dry skin D) Tachypneic respirations
A patient with a stoma and tracheostomy tube is responsive to painful stimuli. He has shallow respirations and is breathing at a rate of 6 times per minute. He has cyanosis of the fingertips and a weak, rapid radial pulse. Which strategy should be used in providing respiratory care to this patient?
A) Remove the tracheostomy tube, place a child-size mask on the bag-valve device, and ventilate the patient through the stoma B) Attach the bag-valve device directly to the tracheostomy tube C) Use a continuous positive airway pressure device over the stoma D) Place a tracheostomy mask over the tube and administer high-concentration oxygen
All of the following are true about HLA class I molecules except
a. Are expressed only on antigen presenting cells b. Includes a 45 kDa ? glycoprotein heavy chain c. Includes a 12 kDa ?-2 microglobulin light chain d. Has a peptide-binding cleft that reacts with short peptides