The term as low as reasonable achievable (ALARA) is synonymous with the term
a. background equivalent radiation time (BERT).
b. equivalent dose (EqD).
c. diagnostic efficacy.
d. optimization for radiation protection (ORP).
d. optimization for radiation protection (ORP).
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The inspiratory time setting for an infant with RDS, airway resistance of 30 cm H2O/L/sec, and lung compliance of 0.002 L/cm H2O should be which of the following?
a. 0.25 sec b. 0.30 sec c. 0.45 sec d. 0.55 sec
Which cement is very acidic and requires the tooth to be protected with liners or varnishes before the cement is placed?
a. Zinc phosphate b. Zinc oxide eugenol c. Glass ionomer d. Polycarboxylate
What is a severe decrease or total absence of erythrocytes, leukocytes, and thrombocytes called?
a. Erythrocytopenia b. Leukocytopenia c. Lymphopenia d. Pancytopenia
The main disadvantage of the LMA is that it:
A) does not provide protection against aspiration. B) spontaneously dislodges in the majority of patients. C) is associated with significant upper airway swelling. D) is technically more difficult to perform than intubation.