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Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks


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Chapter 42: Fluid, Electrolyte, and Acid-Base Balance

Chapter 42: Fluid, Electrolyte, and Acid-Base Balance

Potter et al.: Fundamentals of Nursing, 9th Edition

MULTIPLE CHOICE


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com

1.A patient has dehydration. While planning care, the nurse considers that the majority of the patient’s total

water volume exists in with compartment?

a. Intracellular

b. Extracellular

c. Intravascular

d. Transcellular

ANS: A

Intracellular (inside the cells) Ԩuid accounts for approximately two thirds of total body water. Extracellular

(outside the cells) is approximately one third of the total body water. Intravascular Ԩuid (liquid portion of the

blood) and transcellular Ԩuid are two major divisions of the extracellular compartment.

DIF:Understand (comprehension)REF:935

OBJ escribe the processes involved in regulating extracellular Ԩuid volume, body Ԩuid osmolality, and Ԩuid

distribution.TOP lanning

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MSC: Physiological Adaptation


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com

2.The nurse is teaching about the process of passively moving water from an area of lower particle

concentration to an area of higher particle concentration. Which process is the nurse describing?

a. Osmosis

b. Filtration

c. DiԨusion

d. Active transport

ANS: A

The process of moving water from an area of low particle concentration to an area of higher particle

concentration is known as osmosis. Filtration is mediated by Ԩuid pressure from an area of higher pressure to

an area of lower pressure. DiԨusion is passive movement of electrolytes or other particles down the

concentration gradient (from areas of higher concentration to areas of lower concentration). Active transport

requires energy in the form of adenosine triphosphate (ATP) to move electrolytes across cell membranes

against the concentration gradient (from areas of lower concentration to areas of higher concentration).

DIF:Understand (comprehension)REF:936

OBJ escribe the processes involved in regulating extracellular Ԩuid volume, body Ԩuid osmolality, and Ԩuid

distribution.TOP:Teaching/Learning

MSC: Physiological Adaptation


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com

3.The nurse observes edema in a patient who has venous congestion from right heart failure. Which type of

pressure facilitated the formation of the patient’s edema?

a. Osmotic

b. Oncotic

c. Hydrostatic

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d. Concentration

ANS: C

Venous congestion increases capillary hydrostatic pressure. Increased hydrostatic pressure causes edema by

causing increased movement of Ԩuid into the interstitial area. Osmotic and oncotic pressures involve the

concentrations of solutes and can contribute to edema in other situations, such as inԨammation or

malnutrition. Concentration pressure is not a nursing term.

DIF:Understand (comprehension)REF:937

OBJ escribe common Ԩuid, electrolyte, and acid-base imbalances.

TOP: Assessment MSC: Physiological Adaptation


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com

4.The nurse administers an intravenous (IV) hypertonic solution to a patient. In which direction will the Ԩuid

shift?

a. From intracellular to extracellular

b. From extracellular to intracellular

c. From intravascular to intracellular

d. From intravascular to interstitial

ANS: A

Hypertonic solutions will move Ԩuid from the intracellular to the extracellular (intravascular). A hypertonic

solution has a concentration greater than normal body Ԩuids, so water will shift out of cells because of the

osmotic pull of the extra particles. Movement of water from the extracellular (intravascular) into cells

(intracellular) occurs when hypotonic Ԩuids are administered. Distribution of Ԩuid between intravascular and

interstitial spaces occurs by Ԩltration, the net sum of hydrostatic and osmotic pressures.

DIF:Understand (comprehension)REF:936 | 956

OBJ escribe the processes involved in regulating extracellular Ԩuid volume, body Ԩuid osmolality, and Ԩuid

distribution.TOP lanning

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MSC harmacological and Parenteral Therapies


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com

5.A nurse is preparing to start peripheral intravenous (IV) therapy. In which order will the nurse perform the

steps starting with the Ԩrst one?

1. Clean site.

2. Select vein.

3. Apply tourniquet.

4. Release tourniquet.

5. Reapply tourniquet.

6. Advance and secure.

7. Insert vascular access device.

a. 1, 3, 2, 7, 5, 4, 6

b. 1, 3, 2, 5, 7, 6, 4

c. 3, 2, 1, 5, 7, 6, 4

d. 3, 2, 4, 1, 5, 7, 6

ANS: D

The steps for inserting an intravenous catheter are as follows: Apply tourniquet; select vein; release tourniquet;

clean site; reapply tourniquet; insert vascular access device; and advance and secure.

DIF:Apply (application)REF:971-974

OBJ iscuss purpose and procedure for initiation and maintenance of intravenous

therapy.TOP:Implementation

MSC harmacological and Parenteral Therapies


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com


Chapter 42: Fluid, Electrolyte, and Acid­Base Balance | Nursing Test Banks | Qwivy.com