The nurse scaring for a patient who will be needing a blood transfusion. The nurse knows that the universal recipient of blood would be considered blood type:

An Incentive Spirometer is a device that helps patients take deep breaths and improve their lung function. It encourages patients to take deep breaths and to hold them for a few seconds. The device also helps to monitor and measure lung volume. By using an incentive spirometer, MA can expand her lung volume as much as possible and allow for proper oxygen blood exchange within the alveoli. This is an important technique to help prevent pneumonia and other respiratory complications.

The other options mentioned, 4L of oxygen via Nasal Cannula, Fluter Valve, and Abdominal Binder, are not appropriate devices to help MA achieve proper breathing techniques and expand lung volume. 4L of oxygen via Nasal Cannula is used to provide supplemental oxygen to patients who have difficulty breathing. Fluter Valve is a handheld device used for airway clearance in patients with chronic obstructive pulmonary disease (COPD) or cystic fibrosis. An abdominal binder is a wrap that is placed around the abdomen to support the abdominal muscles and help reduce pain after surgery or injury. These devices do not help improve lung function and are not appropriate for MA's condition.

Choice A reason: This is incorrect because it shows that the PN is not familiar with the nursing diagnosis criteria. Three defining characteristics are not the least number required for the diagnosis of Impaired Verbal Communication.

Choice B reason: This is correct because it shows that the PN is familiar with the nursing diagnosis criteria. One defining characteristic is the least number required for the diagnosis of Impaired Verbal Communication, according to the NANDA-I taxonomy.

Choice C reason: This is incorrect because it shows that the PN is not familiar with the nursing diagnosis criteria. Four defining characteristics are not the least number required for the diagnosis of Impaired Verbal Communication.

Choice D reason: This is incorrect because it shows that the PN is not familiar with the nursing diagnosis criteria. Two defining characteristics are not the least number required for the diagnosis of Impaired Verbal Communication.