Chapter 6: A Review of Arithmetic

Chapter 6: A Review of Arithmetic

 

Complete Chapter Questions With Answers

 

Sample Questions Are Posted Below

 

MULTIPLE CHOICE

 

1. Which mathematical system is most accurate?

A.	Apothecary
B.	Household
C.	Metric
D.	Arabic

 

 

ANS:   C

 

	Feedback
A	This system is no longer recommended for use in health care systems.
B	Although most medications are administered at home by this system, it is the least accurate.
C	The metric system is the most accurate system.
D	This is a name for the type of numbers used in calculating drug dosages; it is used in all of the systems noted above.

 

 

DIF:    Cognitive Level: Knowledge             REF:    71

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity

 

2. Which medication consists of a liquid solvent that contains one or more dissolved substances?

A.	Emulsion
B.	Precipitate
C.	Aliquot
D.	Intravenous solution

 

 

ANS:   D

 

	Feedback
A	An emulsion is a mixture of two immiscible (unblendable) substances.
B	A precipitate is an insoluble product of a chemical reaction.
C	An aliquot is a nonspecific small amount of a whole sample of a substance.
D	IV solutions consist of dissolved substances (solutes) in a liquid (solvent).

 

 

DIF:    Cognitive Level: Knowledge             REF:    76

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity

 

3. Which is the most accurate way for the nurse to document the administration of two milligrams of a medication?

A.	Two mg
B.	2.0 mg
C.	2 mg
D.	ii mg

 

 

ANS:   C

 

	Feedback
A	It is not appropriate to write out the word “two”; 2 is acceptable.
B	It is inaccurate to have a trailing zero to the right of the decimal point.
C	This is the correct documentation because trailing zeros to the right of the decimal point are not accurate.
D	Arabic numbers are used to write metric doses.

 

 

DIF:    Cognitive Level: Application             REF:    67

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity

 

COMPLETION

 

Convert the following to Arabic numerals.

 

1. xi = _____

 

ANS:

11

 

Correct: Whenever a smaller Roman numeral follows a larger one, the two are added.

x = 10; i = 1

10 + 1 = 11

Incorrect: Whenever a smaller Roman numeral follows a larger one, the two are added.

x = 10; i = 1

10 + 1 = 11

 

DIF:    Cognitive Level: Comprehension      REF:    61

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity

 

2. xxiv = _____

 

ANS:

24

 

Correct: Whenever a smaller Roman numeral follows a larger one, the two are added. Whenever a smaller Roman numeral appears between two larger ones, subtract the smaller number from the numeral following it.

x = 10; v = 5; i = 1

10 + 10 + (5 – 1) = 24

 

Incorrect: Whenever a smaller Roman numeral follows a larger one, the two are added. Whenever a smaller Roman numeral appears between two larger ones, subtract the smaller number from the numeral following it.

 

x = 10; v = 5; i = 1

10 + 10 + (5 – 1) = 24

 

DIF:    Cognitive Level: Comprehension      REF:    61

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity

 

3. lx = _____

 

ANS:

60

 

Correct: Whenever a smaller Roman numeral appears after a larger one, the two are added.

l = 50; x = 10

50 + 10 = 60

 

Incorrect: Whenever a smaller Roman numeral appears after a larger one, the two are added.

l = 50; x = 10

50 + 10 = 60

 

DIF:    Cognitive Level: Comprehension      REF:    61

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity

 

4. xlii = _____

 

ANS:

42

 

Correct: Whenever a Roman numeral is repeated, the numerals are added. Whenever a smaller Roman numeral follows a larger one, the two are added. Whenever a larger Roman numeral follows a smaller one, the two are subtracted.

l = 50; x = 10; i = 1

(50 –10) + 1 + 1 = 42

 

Incorrect: Whenever a Roman numeral is repeated, the numerals are added. Whenever a smaller Roman numeral follows a larger one, the two are added. Whenever a larger Roman numeral follows a smaller one, the two are subtracted.

 

l = 50; x = 10; i = 1

(50 –10) + 1 + 1 = 42

 

DIF:    Cognitive Level: Comprehension      REF:    61

TOP:    Nursing Process Step: Implementation

MSC:   NCLEX Client Needs Category: Physiological Integrity