Nokea
Which of the following dental conditions is characterized by the wearing away of tooth structure due to friction from external sources such as toothbrushing or abrasive toothpaste?
- A. Dental caries
- B. Attrition
- C. Abrasion
- D. Erosion
Correct Answer: C
Rationale: The correct answer is C: Abrasion. Abrasion is the wearing away of tooth structure due to friction from external sources like toothbrushing or abrasive toothpaste. Dental caries (A) refers to tooth decay caused by bacteria. Attrition (B) is the wearing down of tooth structure due to tooth-to-tooth contact. Erosion (D) is the loss of tooth structure from acid attacks, not friction. Therefore, option C is the most fitting choice based on the description given.
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The physician prescribes decongestant intranasal spray. The nurse instructs the client on the proper use of the spray. Which of the following procedures is the CORRECT method?
- A. Finish instillation of spray into one nostril before spraying into the other nostril
- B. Inhale quickly to prevent irritation off the mucous membranes
- C. Blow the nose after spraying to prevent medications from entering the throat
- D. Tilt the head slightly forward and angle the bottle toward the side of the nostril
Correct Answer: D
Rationale: The correct answer is D: Tilt the head slightly forward and angle the bottle toward the side of the nostril. This method allows for proper administration of the spray into the nasal passage, ensuring effective delivery of the medication. Tilted head helps direct the spray towards the nasal cavity without causing discomfort or leakage. It also helps prevent the medication from dripping down the back of the throat.
Choices A, B, and C are incorrect:
A: Finishing instillation in one nostril before moving to the other can lead to uneven distribution of medication and reduced effectiveness.
B: Inhaling quickly may cause irritation and discomfort to the mucous membranes due to the forceful intake of the spray.
C: Blowing the nose after spraying can expel the medication before it has a chance to be absorbed, decreasing its efficacy.
There is an outbreak of measles in some areas of the community where Nurse Rona is assigned. Which of the following-steps of an outbreak investigation should Nurse Rona and her team begin ?
- A. Identify and count cases.
- B. Define and identify cases.
- C. Verify diagnosis
- D. Prepare for field work.
Correct Answer: A
Rationale: The correct answer is A: Identify and count cases. In the initial stages of an outbreak investigation, it is crucial to identify and count cases to understand the scope and magnitude of the outbreak. By counting cases, Nurse Rona and her team can track the spread of the disease, identify common characteristics among those affected, and determine the extent of the outbreak. This step helps in guiding further investigation and control measures.
Summary of other choices:
B: Define and identify cases - While defining cases is important, it is not the initial step in outbreak investigation.
C: Verify diagnosis - Verifying diagnosis is important but comes after identifying and counting cases.
D: Prepare for field work - Field work is important in outbreak investigations, but it typically comes after the initial step of identifying and counting cases.
A patient expresses concerns about the financial implications of their treatment plan. What is the nurse's best response?
- A. Dismiss the patient's concerns and assure them that the treatment plan is necessary.
- B. Provide the patient with information about financial assistance programs and resources.
- C. Ignore the patient's concerns and proceed with implementing the treatment plan.
- D. Tell the patient that financial concerns should not affect their decision-making.
Correct Answer: B
Rationale: The correct answer is B because the nurse's role is to address the holistic needs of the patient, including financial concerns. Providing information about financial assistance programs and resources shows empathy and supports the patient in making informed decisions.
Choice A is incorrect because dismissing the patient's concerns can lead to a breakdown in trust and communication. Choice C is incorrect as ignoring the patient's concerns is not addressing the patient's needs. Choice D is incorrect because financial concerns are valid and should be considered in decision-making.
Which of the following cell types is primarily responsible for presenting antigens to T cells during the immune response?
- A. B cells
- B. Natural killer (NK) cells
- C. Macrophages
- D. Eosinophils
Correct Answer: C
Rationale: The correct answer is C: Macrophages. Macrophages are antigen-presenting cells that engulf pathogens and present their antigens to T cells, initiating an immune response. They express major histocompatibility complex (MHC) molecules necessary for T cell recognition. B cells also present antigens but primarily to B cells for antibody production. NK cells are involved in killing infected cells, not antigen presentation. Eosinophils are mainly involved in allergic responses and defense against parasites, not antigen presentation.
At which stage of Lewin ' s planned change indicates the nurse identifying, planning, and implementing appropriate strategies ensuring that driving forces exceed restraining forces?
- A. refreezing
- B. movement
- C. unfreezing
- D. in activism
Correct Answer: C
Rationale: The correct answer is C: unfreezing. Unfreezing is the initial stage in Lewin's planned change model where individuals become open to change by recognizing the need for it. During this stage, the nurse identifies the need for change, plans strategies to implement it, and works on overcoming resistance by ensuring that the driving forces (reasons for change) outweigh the restraining forces (barriers to change). Refreezing (A) is the final stage where the changes are reinforced and integrated into the organization. Movement (B) is the stage where actual change occurs, and in activism (D) is not a recognized stage in Lewin's model.