The Wang Respiratory Score (WRS) calculator evaluates the respiratory condition of a patient by analyzing four key inputs: general condition, respiratory rate, wheezing, and retractions. Each input category has predefined options that are assigned specific numerical values. The sum of these values produces a total score that ranges from 0 to 12, which provides an interpretation of the patient's respiratory status.

The numerical values assigned to each input option are depicted in the following table:

| Input Category         | Option                                          | Score |
|------------------------|-------------------------------------------------|-------|
| General Condition      | Normal                                          | 0     |
|                        | Irritable/lethargic/poor feeding                | 3     |
| Respiratory Rate (bpm) | < 30                                            | 0     |
|                        | 31-45                                           | 1     |
|                        | 46-60                                           | 2     |
|                        | > 60                                            | 3     |
| Wheezing               | None                                            | 0     |
|                        | Terminal expiration or only with stethoscope    | 1     |
|                        | Entire expiration or audible on expiration      | 2     |
|                        | Inspiration and expiration without stethoscope  | 3     |
| Retractions            | None                                            | 0     |
|                        | Intercostal only                                | 1     |
|                        | Tracheosternal recession                        | 2     |
|                        | Severe with nasal flaring                       | 3     |

To compute the Wang Respiratory Score, the patient's selected options are matched to their corresponding scores. These scores are then summed to obtain the total score, which will fall between 0 and 12.

The Wang Respiratory Score (WRS) is a clinical calculator used in the assessment of infants with lower respiratory tract infections, particularly bronchiolitis.