Situation: A 72-year-old woman is admitted for elective open repair of a large abdominal wall hernia under general anesthesia tomorrow morning. She lives with her daughter, is alert and oriented, and wears glasses and dentures. The surgeon has confirmed that she can give her own consent. The nurse teaches her how to use an incentive spirometer. Which instruction is correct?

An incentive spirometer encourages slow, deep, sustained inhalation that opens the alveoli and helps prevent atelectasis and pneumonia. The client inhales slowly to raise the indicator, holds the breath for about 3 to 5 seconds, and then exhales slowly. She takes 10 to 15 breaths every 1 to 2 hours while awake, or as ordered, together with deep breathing, coughing, early walking, and good pain control.

Incentive spirometry is a cornerstone of postoperative pulmonary care, especially for an older adult undergoing open abdominal surgery. The goal is not simply to move air, but to generate a slow, sustained negative pressure that re-expands collapsed alveolar units. The correct technique is to inhale slowly and deeply through the mouthpiece, hold the breath for about 3 to 5 seconds, and then exhale slowly. This sustained inspiratory hold allows time for collateral ventilation channels to open and for surfactant to stabilize newly recruited alveoli, which is the physiologic basis for preventing atelectasis.

The other options describe common errors that undermine the device’s purpose. Blowing out hard into the mouthpiece does not expand alveoli; it only exercises expiratory muscles and may actually promote airway closure in a frail older patient. Using the device only 10 times per shift is far below the recommended frequency and would provide insufficient alveolar recruitment. Breathing in quickly to make the indicator jump to the top encourages shallow, high-flow inspiration that preferentially ventilates already-open lung units while bypassing collapsed regions. Watch out! The indicator rising is not the goal by itself; the goal is a slow, controlled rise that reflects sustained alveolar opening.

For this 72-year-old patient, age and the location of surgery both increase pulmonary risk. Abdominal wall hernia repair involves an incision near the diaphragm, and postoperative pain can lead to splinting and shallow breathing. Frailty and reduced respiratory muscle strength in older adults further increase the likelihood of postoperative pulmonary complications. The evidence base supports structured pulmonary rehabilitation and nursing surveillance as effective strategies to reduce these complications after abdominal and other major surgeries ^[1][3]. Incentive spirometry is one component of that broader bundle, which also includes early mobilization, coughing, and adequate analgesia.

The recommended frequency is 10 to 15 breaths every 1 to 2 hours while awake, not merely a fixed number per shift. This dosing schedule maintains intermittent alveolar recruitment throughout the day. Each session should consist of slow, deep inhalations with a 3- to 5-second breath-hold, followed by a relaxed exhalation. Patients should be reminded to remove dentures only if they interfere with a tight seal around the mouthpiece; otherwise, keeping dentures in place often improves lip seal and mouthpiece fit. Glasses do not affect spirometer use.

Nursing surveillance is critical in the early postoperative period. A holistic decision support approach that integrates risk prediction with structured nursing actions can help identify patients whose respiratory status is deteriorating before overt pneumonia or atelectasis develops ^[3]. For this patient, the nurse should assess breath sounds, respiratory rate, and oxygen saturation regularly, and document the patient’s ability to perform the incentive spirometer correctly. Key point! Teaching must be followed by return demonstration to confirm that the patient can generate a slow, sustained inhalation rather than a quick, forceful one.

Pulmonary rehabilitation programs that emphasize repeated, nurse-led coaching improve adherence and clinical outcomes in surgical populations ^[1]. Even when technology such as virtual reality is used to deliver respiratory training, the underlying physiologic principle remains the same: slow, deep, sustained inspiration with a breath-hold is what opens alveoli and prevents postoperative pulmonary decline . The nurse’s role is to translate that principle into a simple, repeatable action the patient can perform independently after surgery.