If direct pressure with a sterile dressing fails to immediately stop severe bleeding from an extremity, you should apply: a. additional sterile dressings. b. a splint and elevate the extremity. c. a tourniquet proximal to the injury. d. digital pressure to a proximal artery.

What kind of wound occurred when the skin scrapes against a hard surface and tiny blood vessels break in the outer layer of skin

Lyme disease is caused by a bacterium transmitted to people by deer ticks. deer ticks are almost never born infected with the bacterium, but they can pick it up from feeding on an infected host in any of the tick's three successive stage of development: larva, nymph, adult. once infected, a tick remains infected through any subsequent developmental stages, but since a tick feeds on only one host in each stage, it follows that . people can be infected only by being bitten by a tick that is either in larval stage or in the nymph stage b. people cannot be infected by a tick that picked up the lyme disease bacterium in the adult stage c. it is not possible for a person to be infected by a tick that is in the nymph stage or by a tick that was infected with the bacterium while in the nymph stage d. people infected with the lyme disease bacterium cannot transmit bacterium to adult deer ticks e. only deer ticks that are adults can transmit the lyme disease bacterium to people

Genetic therapy and engineering . have no value for our future b. have been used for many years to prevent genetic diseases c. are simple procedures that most doctors can perform d. are controversial scientific procedures