Which of the following statements is true regarding the use of significant figures in science?
A) All numbers must be rounded so that all digits are considered significant.
B) Any uncertain digits must be clearly documented alongside the measurement.
C) It is customary to report measurements such that only the last digit is uncertain.
D) Measurements must be repeated until no uncertain digits remain.
C
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Which of the following is correct for Young's rule?
a. Divide the child's age in years by 12, and then multiply this number by the adult dose to determine the correct pediatric dosage. b. Divide the child's age in years by 12, and then subtract this number by the adult dose to determine the correct pediatric dosage. c. Multiply the child's age in years by 12, and then multiply this number by the adult dose to determine the correct pediatric dosage. d. Divide the child's age in years by the same number plus 12, and then multiply this number by the adult dose to determine the correct pediatric dosage.
When a person's diaphragm contracts and the intercostal muscles pull the ribs upward, which one of the following will occur?
A) Oxygen will leave the body. B) Air will flow into the lungs. C) Pressure inside the chest will increase. D) Carbon dioxide will be exhaled.
Which of the following regions houses the navel?
A. Umbilical B.Hypogastric C.Epigastric D.Lumbar
Which abnormality is characterized by photophobia, ataxia, hallucinations, and clouding of consciousness?
A. Monge’s disease B. high altitude pulmonary edema C. acute mountain sickness D. high altitude cerebral edema