Deck 1: Measurements in Science and Medicine

Question 1

An appropriate unit to measure the length of a football field would be the meter.

Answer 1

True

Question 2

A 20.00 mL urine sample of a patient has a mass of 20.70
g. This patient is most likely drinking very large amounts of water.

Answer 2

False

Question 3

If the specific gravity of a sample of urine tested higher than normal, this would indicate dilution.

Answer 3

False

Question 4

To convert feet to inches, you should multiply by the factor shown below.

Question 5

If a patient stands 6 feet tall, their height can also be expressed as 1828.8 cm.

Question 6

The average of the following volume measurements is 15.5 mL.

Question 7

The lowest temperature ever recorded on earth was -128.6°F. The temperature is equivalent to - 89.2 Κ.

Question 8

The memory capacity of a flash drive is measured in gigabytes so that the capacity can be expressed using simple integers.

Question 9

The normal range (adult) for specific gravity of urine is 1.020 - 1.028 g/mL

Question 10

Using a unit of mg to measure the mass of a premature infant would not be appropriate because the mass of the infant would be a very large number.

Question 11

To convert micrograms to grams, you should multiply by 1,000,000 g/μg.

Question 12

If an order read: NS (normal saline solution) 1000 mL to be given intravenously over 8 hrs. 125 mL of NS should be administered every hour.

Question 13

A Celsius degree is the same size as a Kelvin degree.

Question 14

Consider the image below. The smallest division on the ruler is a cm.

Question 15

If the following represents a syringe that measures in cc's (cm³), the volume indicated by the end of the plunger would be correctly recorded as 5.2 cc.

Question 16

One advantage of the Kelvin system is that it is impossible to have temperatures below zero.

Question 17

The normal range (adult) for specific gravity of urine is 1.010 - 1.048 g/mL.

Question 18

A patient weights 220 lbs. A medication for this patient is supposed to be taken using a dosage of 3 mg per kg per day. The correct dose for this patient is 3000 mg per day.

Question 19

Consider the image showing a sample of modeling clay. The density of the clay remains constant through the changes shown.

Question 20

A pharmaceutical solution of penicillin contains 125 mg of penicillin in 3 mL. The two conversion factors that express this relationship are: and

Question 21

Which of the following set-ups will allow you to calculate the cost of fruit in dollars per gram, if the price is given as 0.79 dollars per pound?

A)
B)
C)
D)

Question 22

The following statement is correct based on the size of the measurement. "My cup of coffee contains 500 L."

Question 23

A common piece of laboratory glassware is a 125 mL beaker. What is the volume of this piece of glassware in the English system of units? [1 quart = 0.946 L = 32 fl oz]

A) 0.423 fl oz
B) 0.423 quarts
C) 4.23 fl oz
D) 4.23 quarts

Question 24

The prefix centi- denotes what fraction of a base unit?

A) 1/10
B) 1/100
C) 1/1000
D) 100

Question 25

An intern made an error and gave a patient a dose of 500 μg rather than 500 mg of a drug. Which of the following is true?

A) The patient received an overdose by a factor of 1000.
B) The patient received an overdose by a factor of 100.
C) The patient received an underdose by a factor of 1000.
D) The patient received an underdose by a factor of 100.

Question 26

The mass of an object is

A) the force between the object and the earth.
B) a measure of the amount of matter in the object.
C) the amount of space the object occupies.
D) depends on the location of the object on Earth.

Question 27

Aluminum has a density of 2.70 g/ mL. What volume is occupied by a block of aluminum that weighs 4.32 kg?

A) 0.000625 mL
B) 0.625 mL
C) 1.60 mL
D) 1.60 L

Question 28

The base unit of length in the metric system is the

A) mil.
B) millimeter.
C) foot.
D) meter.

Question 29

A particular model of hybrid car can travel 53.0 miles/gallon of gas. What is this fuel efficiency expressed in the metric system? [1 quart = 0.946 L; 1 mile = 1.609 km]

A) 8.71 km/L
B) 20.2 km/L
C) 22.5 km/L
D) 90 km/L

Question 30

The land surface area of the earth is approximately 1.49 × 10⁸ km². Which of the following is the correct way to write this in conventional notation?

A) 0.00000000149 km²
B) 149,000,000 km²
C) 14,900,000,000 km²
D) none of these

Question 31

The densities of the coinage metals (copper, silver and gold) are as follows: copper = 8.95 g/mL
Silver = 12.59 g/mL
Gold = 19.32 g/mL
A sample of material is found to have a mass if 33.03 grams, and have a volume of 2.624 mL. This is a sample of which of the coinage metals?

A) copper
B) silver
C) gold
D) It is not one of the coinage metals.

Question 32

In which of the following are the masses given in the correct order?

A) cg > mg > g >kg
B) cg > g > kg > mg
C) kg > g > cg > mg
D) mg > cg > g > kg

Question 33

Which of the following is the smallest number?

A) 5 × 10³
B) 3 × 10⁴
C) 2 × 10^-5
D) 7 × 10^-6

Question 34

A penicillin derivative is used to treat infections with an adult 24-hour dosage of 35 mg/kg of body mass. This is to be given in three injections daily. This antibiotic is prepared by the pharmacy in solution form with a concentration of 130 mg/5mL. What volume in milliliters should be given in each injection to an adult with a mass of 12.5kg?

A) 5.6 mL
B) 17 mL
C) 50 mL
D) 0.32 mL

Question 35

If urine has a density of 1.08 g/mL, what would be the mass of a 143 mL urine sample?

A) 154 g
B) 132 g
C) 143 g
D) 0.00699 g

Question 36

How many minutes are in a 30 day month? [Assume exactly 24 hours in a day]

A) 7.20 × 10² minutes
B) 4.32 × 10⁴ minutes
C) 2.59 × 10⁶ minutes
D) 3.11 × 10⁷ minutes

Question 37

A tablet contains 250 mg of penicillin while the solution form of the same antibiotic contains 250 mg of penicillin/5 mL. If a doctor was to prescribe that one-half of a scored tablet be taken four times a day, how many mL of the solution would be equivalent to this daily dosage?

A) 5.0 mL
B) 20. mL
C) 2.5 mL
D) 10. mL

Question 38

Which of the following is true of the relationship between density and specific gravity?

A) They have different numerical values and different units.
B) They have nearly the same numerical value and the same units.
C) They have nearly the same numerical value but specific gravity is dimensionless.
D) They have the nearly same units but different numerical values.

Question 39

Which of the following is not a base unit of the metric system?

A) g
B) g/L
C) L
D) All are base units.

Question 40

In an experiment a solid sphere is placed in a cylinder containing the organic solvent cyclohexane (density = 0.778 g/mL). Based on this picture, the sphere has a density:

A) greater than 0.778 g/mL
B) less than 0.778 g/mL
C) about the same as 0.778 g/mL
D) The image does not provide enough information to answer.

Question 41

The thermostat on an incubator reads 65°C. What is this temperature on the Kelvin scale?

A) 338 K
B) 149 K
C) -208 K
D) 65 K

Question 42

The following questions refer to the plastic box shown below. Fill in the blanks in the questions from the following list. All units in the list will not be used and a unit maybe used more than once.
dm
L
μL
g/mL
kg
μm
km
If a measurement were made of the quantity represented by X in the figure, an appropriate unit to use would be__________________________ if X = 18 in.

Question 43

The boiling point of liquid nitrogen is 77 K. What is this temperature on the Celsius scale?

A) 350°C
B) 171°C
C) 25°C
D) -196°C

Question 44

If a patient weighs 203 pounds (lbs), how many kilograms (kg) does the patient weigh?

A) 203 kg
B) 92.1 kg
C) 448 kg
D) kg

Question 45

The following questions refer to the plastic box shown below. Fill in the blanks in the questions from the following list. All units in the list will not be used and a unit maybe used more than once.
dm
L
μL
g/mL
kg
μm
km
The box is filled with water to the very top from a graduated cylinder. A unit that could be used to measure this quantity would be ______________________.

Question 46

The following questions refer to the plastic box shown below. Fill in the blanks in the questions from the following list. All units in the list will not be used and a unit maybe used more than once.
dm
L
μL
g/mL
kg
μm
km
If the box were placed on a balance, a unit that might appear on the balance read-out would be _______________________.

Question 47

At what temperature do the temperatures on the Celsius and Kelvin scales have the same numerical value?

A) - 40
B) 0
C) 32
D) There is no value where the two scales are the same.

Question 48

If the density of ethanol is 0.787 g/mL, what is the mass of 37.4 mL of this substance?

A) 47.5 g
B) 29.4 g
C) 37.4 g
D) 0.0210 g

Question 49

In the health sciences, learning and understanding how to accurately convert chemical quantities is of utmost importance, as it keeps your patients and your practice safe. At home medicines are sometimes dispensed by the teaspoon (tsp) or tablespoon (tbsp). If there are 3 tsp in 1 tbsp and 1 tbsp is equal to 15 mL, how many milliliters are 2.0 tsp?

A) 45 mL
B) 45.0 mL
C) 20 mL
D) 3.0 mL

Question 50

The following questions refer to the plastic box shown below. Fill in the blanks in the questions from the following list. All units in the list will not be used and a unit maybe used more than once.
dm
L
μL
g/mL
kg
μm
km
Fill in the blanks with top or bottom as appropriate. In order to convert from kilograms to grams, the conversion factor should have 1 kg on the ____________________ and 1000 g on the _____________________.

Question 51

Consider the two images below showing the readout on two balances. A B Which balance should be able to produce more precise measurements?

A) A
B) B
C) The accuracy cannot be determined.

Question 52

How many signficant figures are in the the measurement given below? 220.10 mm

A) 2
B) 3
C) 4
D) 5

Question 53

The following questions refer to the plastic box shown below. Fill in the blanks in the questions from the following list. All units in the list will not be used and a unit maybe used more than once.
dm
L
μL
g/mL
kg
μm
km
Fill in the first blank with the appropriate number (1, 2, 3 etc.) and the second blank with the direction (right or left). In order to convert from milliliters to liters, the decimal is moved ___________________ places to the___________________.

Question 54

Compare the following two metric rulers. Fill in the blanks, respectively, with the identity of the ruler (A or B) and the terms more or less as appropriate. A measurement made with ruler_____________________would be ___________________accurate.

Question 55

Consider the image shown below. Which of the following is an appropriate unit to place on this measurement?

A) g
B) mL
C) mm
D) cm³

Question 56

Based on the ruler represented in the picture. Use the appropriate integer (0, 1, 2, 3, etc.) in the blank to answer the question. The length of the side of the triangle should be recorded to _____________________decimal places.

Question 57

The following questions refer to the plastic box shown below. Fill in the blanks in the questions from the following list. All units in the list will not be used and a unit maybe used more than once.
dm
L
μL
g/mL
kg
μm
km
Fill in the first blank with the appropriate number (1, 2, 3, etc.) and the second blank with the direction (right or left). In order to convert from kilogram to milligrams, the decimal is moved ___________________ places to the___________________.

Question 58

Consider the two images below. A B Which balance shows the more accurate measurement?

A) A
B) B
C) The accuracy cannot be determined.

Question 59

How many millimeters are equivalent to 40.5 km?

A) mm
B) mm
C) mm
D) mm

Question 60

What temperature on the Celsius is the same as normal body temperature 98.6°F?

A) 34.3°C
B) 37.0°C
C) 119.9°C
D) none of these

Question 61

Fill in the blank with the appropriate number (0, 1 ,2 ,3 etc.). Consider the following calculation:
143.321 g
17.89 g
+ 100.1 g
261.311 g
The answer should be round to _____________________decimal places.

Question 62

Enter the number (0, 1 ,2, 3, etc.) in the blank provided. Consider the measurement shown below. 23.5410 g
The first uncertain digit is the _______________________.

Question 63

Enter the number (0, 1, 2, 3, etc.) in the blank provided. Consider the measurement shown below. 780 mg
The first uncertain digit is the _______________________.

Question 64

A patient is experiencing pain and you want to administer pain medication. The order reads Morphine 2 mg IV q (every) 4-6 hrs (hours) PRN (as needed) for pain. The pharmacy has supplied Morphine 10 mg/mL vials. How many mL's are to be administered to your patient?

Question 65

Fill in the blanks, respectively, with a letter (A or B) to represent the balance and more or less to describe the precision. Two students measured the density of a metal block was determined based on mass measurements using the same balance. The results are shown below. If the metal block is gold (density = 21.45 g/mL), student ___________________'s data is ____________________accurate.

Question 66

In an ampule, Sublimaze 2 mL containing 50 mcg/mL is available. The order is to administer Sublimaze 0.05 mg intravenously (IV). (Note: mcg is another abbreviation for μg.)
a. How many mcg will you be giving?
b. How many mL will you be giving?

Question 67

An angiotensin converting enzyme (ACE) inhibitor, from the dicarboxylate-containing agent group, Lisinopril, is ordered as an oral anti-hypertensive (blood pressure lowering) medication. The order reads, Lisinopril 50 mg po (by mouth) qd (each day). The pharmacy supplied Lisinopril 20 mg tablets. How many tablets would be needed each day?

Question 68

A patient arrives in the emergency department with a highly elevated blood pressure of 210/100 mm Hg. A calcium channel blocker and potent vasodilator is ordered. The entry of calcium into the cell causes the cell to contract, therefore a calcium channel blocker blocks the entry of calcium into the cell. This action causes decreased contraction, which in turn causes the vessels to relax and vasodilate, which in turn causes decreased blood pressure. The order reads diltiazem 15 mg IV stat. Diltiazem is supplied in 20 mg/2 mL vials. How many mL's would be administered?

Question 69

Fill in the blanks, respectively, with a letter (A or B) to represent the balance and more or less to describe the precision. The density of a metal block was determined based on mass measurements using two different balances. The results are shown below. The density determined using balance ___________________ is ____________________precise.

Question 70

Fill in the blank with the appropriate number (0, 1, 2, 3 etc.). The thermometer shown in the image is laying on a counter top and indicates room temperature. This temperature contains _____________________significant figures..

Question 71

Write the complete name of the metric unit below in the blank. mm: ______________

Question 72

Fill in the blanks, respectively, with higher or lower and adequate or inadequate. A drop of a potential donor's blood is placed in water and floats on the surface. This indicates that specific gravity of the blood is _______________________than water and that the iron concentration is___________________.

Question 73

The order reads 'haloperidol (generic name) 1 mg IV x1 now'. Haloperidol comes supplied in an ampule containing 10 mg/1 mL. How many mL's will you administer? Show your work.

Question 74

Digoxin is a purified cardiac glycoside, which is a commonly prescribed drug given to a patient experiencing a cardiac disorder, such as atrial fibrillation or atrial flutter. Digoxin 0.125 mg tablets are available. The order is for Digoxin 0.25 mg poq am (by mouth every morning). How many tablets will you give?

Question 75

Consider the metric railraod shown below. Fill in the blank with 10, 100, 1000, 10000, etc. as appropriate. To move between three stops corresponds to increasing or decreasing the unit by a factor of _____________.

Question 76

Fill in the blank with the appropriate number (0, 1, 2, 3 etc.). The following calculation was carried out to determine the volume of a rectangular solid. 15.55 cm × 12.0 cm × 0.557 cm = 105.80233350 cm³
The answer should be round to _____________________significant figures..

Question 77

Fill in the blank with the appropriate term from the following: distance, volume, mass. Kilogram is a unit of _______________.