nurses should understand the chain of infection because it refers to

NCLEX-PN

NCLEX-PN Quizlet 2023

1. Nurses should understand the chain of infection because it refers to:

A. the linkages involved in disease transmission.
B. the sequence required for transmission of disease.
C. the clustering of bacteria in a specific pattern.
D. increasing virulence patterns among microorganisms.

Correct answer: B

Rationale: The chain of infection refers to the sequence required for the transmission of disease, involving steps like the pathogen's presence, movement from a reservoir, and entry into a susceptible host. Understanding this sequence helps healthcare professionals, including nurses, in implementing effective infection control measures. Choices A, C, and D are incorrect because they do not accurately describe the concept of the chain of infection. Choice A is too broad and does not specifically address the sequential nature of disease transmission. Choice C focuses on bacterial clustering rather than the transmission process. Choice D mentions virulence patterns, which are not the primary focus of the chain of infection concept.

2. Which is an example of a sentinel event?

A. The terminally ill client is referred to hospice and dies 3 months later.
B. A client receives an unordered mammogram which reveals a small cyst.
C. A client with a laceration to the knee requiring 4 sutures falls when getting up unassisted after being instructed to remain in bed.
D. A client scheduled for knee replacement surgery had an above-the-knee amputation performed.

Correct answer: D

Rationale: Yes! A sentinel event is an unexpected occurrence causing death or serious injury. In this case, a client who was scheduled for knee replacement surgery but had an above-the-knee amputation performed instead represents a sentinel event as it resulted in serious harm that was not intended. The other choices do not meet the criteria for a sentinel event. Choice A describes a natural progression for a terminally ill client, choice B shows an incidental finding from a test, and choice C involves a preventable fall leading to an injury but not a sentinel event.

3. The drug of choice to decrease uric acid levels is:

A. prednisone (Colisone)
B. allopurinol (Zyloprim)
C. indomethacin (Indocin)
D. hydrochlorothiazide (HydroDiuril)

Correct answer: B

Rationale: The correct answer is allopurinol (Zyloprim) as it is a xanthine oxidase inhibitor that decreases uric acid formation. Allopurinol is commonly used to manage gout by lowering uric acid levels. Prednisone is a corticosteroid used to decrease inflammation, not to lower uric acid levels. Indomethacin is an analgesic, anti-inflammatory, and antipyretic agent, but it is not the drug of choice for lowering uric acid levels. Hydrochlorothiazide is a thiazide diuretic used to treat hypertension and edema, not to decrease uric acid levels.

4. A 27-year-old woman has delivered twins in the OB unit. The patient develops a condition of 5-centimeter diastasis recti abdominis. Which of the following statements is the most accurate when instructing the patient?

A. Avoid sit-ups to prevent worsening the condition.
B. Surgery is not always necessary for this condition.
C. Guarding the abdominal region is important at this time.
D. Antibiotics are not needed for diastasis recti abdominis.

Correct answer: C

Rationale: After experiencing diastasis recti abdominis, it is crucial for the patient to protect and guard the abdominal region to facilitate healing. Choice A is correct since avoiding sit-ups is important to prevent worsening the condition by increasing intra-abdominal pressure. Choice B is accurate as not all cases of diastasis recti abdominis require surgery; conservative management is often effective. Choice D is also correct as antibiotics are not indicated for diastasis recti abdominis since it is a separation of the abdominal muscles and not an infectious condition.

5. A nurse reviewed the arterial blood gas reading of a 25-year-old male. The nurse should be able to conclude the patient is experiencing which of the following conditions?

A. metabolic acidosis
B. respiratory acidosis
C. metabolic alkalosis
D. respiratory alkalosis

Correct answer: D

Rationale: The correct answer is respiratory alkalosis. In respiratory alkalosis, there is an elevated pH and low carbon dioxide levels (PaCO2 < 35 mmHg). In the given arterial blood gas reading, the patient's pH is 7.41 (within normal range), PaCO2 is 29 mmHg (below normal range), indicating respiratory alkalosis. The bicarbonate level is normal (25 mEq/l), ruling out metabolic acidosis or alkalosis. The low PaO2 (54 mmHg) may indicate hypoxemia, but it is not directly related to the acid-base disorder being assessed. Metabolic acidosis (choice A) is characterized by low pH and low bicarbonate levels, which are not present in this case. Respiratory acidosis (choice B) is indicated by low pH and high PaCO2 levels, which also do not match the provided data. Metabolic alkalosis (choice C) is defined by high pH and high bicarbonate levels, which are not seen in this scenario.