# Situation: The public health nurse at a Barangay Health Station (BHS) follows up adults with asthma, chronic obstructive pulmonary disease (COPD), and hypertension who are listed in the barangay registry for noncommunicable diseases (NCDs). A 30-year-old woman with asthma has been prescribed an inhaled corticosteroid (ICS) as a controller. What should the nurse teach her to do after each dose?

> source: MyMerci (mymerci.kr)  
> url: https://mymerci.kr/pages/nclex_q.php?qn_id=627116  
> language: ko  
> subject: Nursing Practice I — Community Health Nursing

## 문제

Situation: The public health nurse at a Barangay Health Station (BHS) follows up adults with asthma, chronic obstructive pulmonary disease (COPD), and hypertension who are listed in the barangay registry for noncommunicable diseases (NCDs).

A 30-year-old woman with asthma has been prescribed an inhaled corticosteroid (ICS) as a controller. What should the nurse teach her to do after each dose?

## 보기

1. Take a dose of her reliever inhaler at once
2. Rinse her mouth with water and spit it out **✔ 정답**
3. Lie down and rest for about 15 minutes
4. Check her peak flow to confirm the effect

**정답: 2**

## 해설

Inhaled corticosteroids leave drug in the mouth and throat, which can cause oral candidiasis and dysphonia. Rinsing the mouth with water and spitting after each dose prevents this. The ICS controls airway inflammation over time and is not expected to relieve symptoms right away.

## 심화 해설

Why mouth rinsing is required after an inhaled corticosteroid

An inhaled corticosteroid (ICS) is a controller medication. It reduces airway inflammation gradually and does not act as a quick reliever. Because the drug is delivered directly into the oropharynx, a portion remains on the oral and pharyngeal mucosa after each inhalation. Residual ICS in the mouth causes local immunosuppression, which allows Candida albicans to overgrow and produces oropharyngeal candidiasis, hoarseness, and dysphonia. [1][3]

The correct instruction is to rinse the mouth with water and spit it out after every dose. This mechanically removes the drug deposited on the mucosa and reduces the risk of local fungal infection and voice changes. [1][2]

Watch out! The patient should spit out the rinse water. Swallowing it delivers the corticosteroid systemically and does not remove the drug from the oropharyngeal surface.

Key point! Rinsing is not needed to improve bronchodilation or to confirm the dose worked. It is a local hygiene measure to prevent adverse effects in the mouth and throat. [3]

| Incorrect option | Why it is not the priority teaching |
| --- | --- |
| Take a reliever inhaler at once | An ICS is not a rescue medication. Taking a short-acting beta-agonist after every controller dose is unnecessary and may cause tremor or tachycardia. |
| Lie down and rest for 15 minutes | Rest does not remove residual drug from the oropharynx and does not prevent local candidiasis or dysphonia. |
| Check peak flow to confirm the effect | Peak flow monitoring assesses airway obstruction, but the anti-inflammatory effect of an ICS develops over days to weeks. A single post-dose peak flow reading cannot confirm controller efficacy. |

The rinsing technique matters. In a study of budesonide delivered by Turbuhaler, gargling and rinsing removed measurable amounts of drug from the oropharyngeal mucosa, and repeating the rinse improved drug removal. [2] A separate survey of inpatients using ICS found that awareness of local adverse effects was linked to better gargling and rinsing habits, supporting the need for explicit patient teaching. [1]

For older adults who wear dentures, residual ICS can remain in the mouth and on the denture surface, so the rinse should include removing and cleaning dentures when applicable.  In a 30-year-old adult without dentures, the core teaching remains the same: rinse with water and spit after each ICS dose.

The purpose of mouth rinsing is prevention of local adverse effects, not relief of acute asthma symptoms. The controller effect of the ICS continues even though the patient rinses afterward, because the drug that reaches the lower airways has already been deposited during inhalation. [3]References (research sources)

- [1][Investigation of mouth washing by patients after inhaling corticosteroids].Research articleYokoyama H, Nakajima Y, Yamamura Y, Iga T, Yamada Y (2005) · DOI: 10.1248/yakushi.125.455

- [2]Effects of mouth washing procedures on removal of budesonide inhaled by using Turbuhaler.Research articleYokoyama H, Yamamura Y, Ozeki T, Iga T, Yamada Y (2007) · DOI: 10.1248/yakushi.127.1245

- [3]Non-Pharmacological Interventions to Prevent Oropharyngeal Candidiasis in Patients Using Inhaled Corticosteroids: A Narrative Review.Research articleArzayus-Patiño L, Benavides-Córdoba V. (2025) · DOI: 10.3390/healthcare13141718

## 임상 시나리오

ICS Inhaler AftercarePreventing Local Adverse Effects
After each inhaled corticosteroid dose, instruct the patient to rinse the mouth with water and spit it out. This removes drug deposited on the oropharyngeal mucosa and reduces the risk of oral candidiasis and dysphonia.

The rinse water must be spat out, not swallowed. Swallowing delivers the corticosteroid systemically and does not clear the oropharyngeal surface.

CautionAn ICS is a controller, not a reliever. It does not relieve acute symptoms immediately, so routine use of a reliever inhaler after each dose is unnecessary and may cause tremor or tachycardia.

## 핵심 개념

- **Inhaled corticosteroid** — Controller medication that reduces airway inflammation gradually; not a quick reliever.
- **Oral candidiasis** — Fungal overgrowth in the mouth caused by local immunosuppression from residual ICS.
- **Dysphonia** — Hoarseness or voice change resulting from ICS deposited on the laryngeal mucosa.
- **Controller medication** — Long-term treatment that prevents symptoms by controlling underlying airway inflammation.
- **Reliever inhaler** — Short-acting bronchodilator used for acute symptom relief, not routine use after ICS.

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