NORCET 2 - 2021 (shift-1)
Child Health Nursing (Pediatrics)
Medium

A child is using a metered-dose inhaler. What is incorrect?

Appeared in: NORCET 2 - 2021 (shift-1)

Explanation

  • The correct answer identifies 'Oropharyngeal irritation' as the incorrect statement because proper MDI use in children includes a spacer.
  • A key purpose of a spacer is to reduce the amount of medication that deposits in the mouth and throat (oropharynx).
  • This reduction in oropharyngeal deposition directly minimizes local side effects like irritation, a hoarse voice, and oral candidiasis (thrush).
  • Therefore, while irritation is a known side effect of improper technique (or MDI use without a spacer), it is not an expected or correct outcome of proper pediatric administration.

Why Other Options Were Wrong

  • Option A: This statement is correct. The entire purpose of using an inhaler is to deliver medication directly to the airways and lungs for a local effect.
  • Option C: This statement is correct. For bronchodilator medications like albuterol or salbutamol, the intended therapeutic action is the expansion and dilation of the bronchi to relieve bronchospasm and improve airflow.
  • Option D: This statement is correct, although phrased confusingly. Because a spacer reduces the initial deposition of the drug in the oropharynx, there is subsequently less drug that needs to be cleared or 'evacuated' from the mouth and throat.

Related Visual

A comparative diagram showing two pathways for MDI aerosol. One without a spacer, showing large particles impacting the back of the throat. The second with a spacer, showing the...
Clinical Relevance
  • Nursing practice connection: Use the key finding related to Principles of metered-dose inhaler (MDI) use in pediatrics, including the role of spacers to guide bedside assessment, documentation, and the next nursing action.
  • Patient education is a critical nursing role. Nurses must teach children and their parents the correct MDI and spacer technique to ensure treatment effectiveness and prevent side effects.
  • Always instruct patients to rinse their mouth with water and spit after using an inhaled corticosteroid to prevent oral thrush, a common fungal infection.
  • Technique should be reviewed at every clinical visit. Observe the patient using their inhaler to identify and correct any errors in the steps (shaking, sealing lips, breathing, holding breath).
How to Approach the Question
  • First, identify the negative framing of the question ('What is incorrect?'). This means you are looking for the one false statement among three true statements.
  • Consider the subject: a 'child' using an MDI. In pediatrics, standard and correct MDI use almost always involves a spacer device to overcome coordination difficulties.
  • Evaluate each option based on the principles of MDI with a spacer.
  • Option A ('Drugs deposited into the lungs') is the goal. True.
  • Option C ('Expansion & dilation of bronchus') is the therapeutic effect. True.
  • Analyze the remaining options. A spacer's function is to reduce drug deposition in the throat. Therefore, 'Oropharyngeal irritation' is an outcome that is actively prevented, making it an 'incorrect' statement about the expected results of proper use.
Concept Tested & Keywords
  • Concept Tested: Principles of metered-dose inhaler (MDI) use in pediatrics, including the role of spacers.
  • Stem keywords: child, metered-dose inhaler, MDI, incorrect
  • Lead-in keywords: What is incorrect
  • Clinical cues: Age/sex group narrows the expected diagnosis, intervention, or normal reference range.
  • Negative lead-in flag: The question asks for the INCORRECT statement, meaning three options are correct and one is false.

Question ID

QORZn8v2Lm1g7sn_-n1S0q

Reference Book

E6 Ghai Essential Pediatrics(pp 26-904 of 913) p. 412-414

E6 Pharmacology Nursing Lilley 11e Part 2 p. 285-287

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