Why does a patient with CO poisoning have cherry red skin coloring instead of cyanosis?
a. CO poisons the hemoglobin and chemical alters the erythrocyte making it incapable of carrying oxygen. The red color is due to compensatory polycythemia which occurs immediately.
b. CO causes the hemoglobin molecule to break apart. The red coloration is from the hemoglobin fragments under the skin
c. Patients with CO posioning hyperventilate so the red coloration is due to the increased WOB
d. CO rapidly fills sites on the hemoglobin where oxygen normally attaches. The high level of carboxyhemoglobin and saturated hemoglobin results in the red coloration
d. CO rapidly fills sites on the hemoglobin where oxygen normally attaches. The high level of carboxyhemoglobin and saturated hemoglobin results in the red coloration
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Which of the following statements about tying the extension ladder halyard is MOST accurate?
A. The halyard should be tied using a figure-eight on a bight. B. The halyard should be tied to prevent the fly from slipping. C. The halyard should be tied before resting the ladder against the structure. D. The halyard should be tied differently for closed- and for open-ended halyards.
Balances that can weigh as little as 0.1 mg, can self-calibrate, and have easy-to-read digital displays are known as which of the following?
A. micropipets B. burettes C. metric weights D. electronic analytical balances