Fire tends to flow through a structure like a:
A) liquid.
B) gas.
C) torch.
D) none of the above.
A) liquid.
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During the past year the population was 6 million. There were 112,587 known cases of tuberculosis and 510 deaths. Calculate the case fatality rate. Round to two decimal places.
Fill in the blank(s) with the appropriate word(s).
That part of the total available pressure not used to overcome friction loss or gravity while forcing water through pipe, fittings, fire hose, and adapters is called _____
A. Flow (velocity) pressure B. Residual pressure C. Atmospheric pressure D. Static pressure
Which of these statements, when made by the EMT, reflects correct knowledge regarding the use of oxygen in a patient with a suspected acute coronary syndrome who denies dyspnea, has a pulse oximeter reading of 96%, and has acceptable vital signs?
A) "Aside from patients with chest pain, stroke, and trauma, oxygen is no longer used in emergency care." B) "Oxygen administration is no longer considered standard therapy for this patient." C) "Oxygen administration should be used in such a way that a patient's SpO2 reaches 97% to 100% if he or she is having chest pain." D) "Over-oxygenating a patient is not an issue for EMS, given the short amount of time we have patient contact."
Which of the following values corresponds most closely to the normal PO2 and PCO2 in the mixed venous blood returning to the lungs from the right side of the heart?
a. PO2 = 40 mm Hg; PCO2 = 46 mm Hg b. PO2 = 40 mm Hg; PCO2 = 100 mm Hg c. PO2 = 100 mm Hg; PCO2 = 40 mm Hg d. PO2 = 100 mm Hg; PCO2 = 46 mm Hg