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Chapter 2: Problem 2
Give the abbreviation for each of the following: a. kilogram b. kelvin c. quart d. meter e. cubic meter
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State the type of measurement in each of the following statements: a. I rode my bicycle \(15 \mathrm{~km}\) today. b. My dog weighs \(12 \mathrm{~kg}\). c. It is hot today. It is \(30{ }^{\circ} \mathrm{C}\). d. I added \(2 \mathrm{~L}\) of water to my fish tank.
On a typical day, medical personnel may encounter several situations involving measurement. State the name and type of measurement indicated by the units in each of the following: a. During open-heart surgery, the temperature of a patient is lowered to \(29^{\circ} \mathrm{C}\). b. The circulation time of a red blood cell through the body is \(20 \mathrm{~s}\). c. A patient with a persistent cough is given \(10 . \mathrm{mL}\) of cough syrup. d. The amount of iron in the red blood cells of the body is \(2.5 \mathrm{~g}\).
Perform each of the following calculations, and give an answer with the correct number of decimal places: a. \(5.08 \mathrm{~g}+25.1 \mathrm{~g}\) b. \(85.66 \mathrm{~cm}+104.10 \mathrm{~cm}+0.025 \mathrm{~cm}\) c. \(24.568 \mathrm{~mL}-14.25 \mathrm{~mL}\) d. \(0.2654 \mathrm{~L}-0.2585 \mathrm{~L}\)
On Greg's last visit to his doctor, he complained of feeling tired. His doctor orders a blood test for iron. Sandra, the registered nurse, does a venipuncture and withdraws \(8.0 \mathrm{~mL}\) of blood. About \(70 \%\) of the iron in the body is used to form hemoglobin, which is a protein in the red blood cells that carries oxygen to the cells of the body. About \(30 \%\) is stored in ferritin, bone marrow, and the liver. When the iron level is low, a person may have fatigue and decreased immunity. The normal range for serum iron in men is 80 to \(160 \mathrm{mcg} / \mathrm{dL}\). Greg's iron test showed a blood serum iron level of \(42 \mathrm{mcg} / \mathrm{dL}\), which indicates that Greg has iron deficiency anemia. His doctor orders an iron supplement to be taken twice daily. One tablet of the iron supplement contains \(65 \mathrm{mg}\) of iron. $ a. Write an equality and two conversion factors for one tablet of the iron supplement. b. How many grams of iron will Greg consume in one week?
Write the equality and two conversion factors, and identify the numbers as exact or give the number of significant figures for each of the following: a. The label on a bottle reads \(10 \mathrm{mg}\) of furosemide per \(1 \mathrm{~mL}\). b. The Daily Value (DV) for selenium is \(70 . \mathrm{mcg}\). c. An IV of normal saline solution has a flow rate of \(85 \mathrm{~mL}\) per hour. d. One capsule of fish oil contains \(360 \mathrm{mg}\) of omega-3 fatty acids.
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