CEN Practice Questions and Answers

CEN Practice Questions and Answers Acids do what to body tissue? Ans- Cause a coagulation type necrosis Alkalis do what to body tissue? Ans- Liquify tissue on contact What do radiation RAYS cause? Ans- Internal contamination, minimal surface damage (decreases risk to caregivers) What do radiation PARTICLES cause? Ans- These can be stopped by clothing and remain on surfaces which pose a threat to others, including caregivers How do you treat stings by coelenterates? (i.e. jellyfish, corals) Ans- Treat these stings with SALT water, because fresh water can stimulate nematocysts that have not yet fired Venom of a black widow is...? Ans- Neurotoxin What causes heat cramps? What do heat cramps usually effect? Ans- Excessive sodium and potassium loss, effecting large muscle groups i.e. upper arms, upper legs, abdomen Submersion in salt water causes? (3) Ans- Pulmonary edema hypovolemia increased serum electrolyte levels How long should chemical exposure patients be decontaminated Ans- Minimum of 15 minutes, continue longer until patient states burning sensation has subsided What do you use to treat black widow bites? (4) Ans- Ice, narcotics, muscle relaxants, and ant ivenin (lactrodectus) Warm frost bite tissue until when? Ans- Until pink or reddened Brown recluse spider bite Ans- Painless Hemorrhagic vs nonhemorhagic blisters in frostbite? Ans- Hemorrhagic - leave intact Nonhemorrhagic - decried and rinse w s terile water