The IMCI assessment for a child with cough follows a structured sequence: first check for general danger signs, then examine for chest indrawing and stridor, and finally count the respiratory rate to determine whether fast breathing is present. In this 11-month-old infant, none of the danger signs are present, there is no chest indrawing, and no stridor is noted. The remaining question is whether the respiratory rate of
48 breaths per minute meets the threshold for fast breathing.
The fast-breathing cut-off is age-specific. For infants aged
2 months up to 12 months, fast breathing is defined as
50 breaths per minute or more. For children aged
12 months up to 5 years, the threshold is
40 breaths per minute or more. Because this infant is
11 months old, the applicable cut-off is
50. A rate of
48 is below that threshold, so fast breathing is not present.
With no general danger signs, no chest indrawing, no stridor, and no fast breathing, the illness is classified as cough or cold (green). The green classification indicates that the child can be managed at home with supportive care, such as a safe remedy for cough, continued feeding, and instructions on when to return immediately.
Key point! The age-based respiratory rate cut-off is the single most important discriminator between the green and yellow classifications in a child with cough but no chest indrawing. At
11 months,
48 is still normal-range for IMCI purposes.
The revised WHO guidance and IMCI protocol classify pneumonia based on
fast breathing and/or
chest indrawing in children aged
2–59 months . In this infant, neither finding is present. Chest indrawing is absent, and the respiratory rate does not reach the fast-breathing threshold for the infant’s age. Therefore, pneumonia is not classified.
Watch out! A common error is applying the
40 breaths per minute cut-off to an infant under
12 months. That threshold applies only from
12 months onward. Using it here would incorrectly suggest fast breathing and lead to a pneumonia classification.
The IMCI algorithm does not include routine lung auscultation by non-physician health workers in low-resource settings, partly because of concerns about feasibility and reliability . Classification relies on the clinical signs assessed in this scenario: danger signs, chest indrawing, stridor, and respiratory rate. In this infant, all findings point to a simple cough or cold.
| Age group | Fast breathing threshold | This infant |
|---|
| 2 months up to 12 months | 50 breaths/min or more | 48 breaths/min — not fast breathing |
| 12 months up to 5 years | 40 breaths/min or more | Not applicable at 11 months |
The correct classification is cough or cold (green), because the respiratory rate of 48 at 11 months of age is below the 50 breaths per minute threshold for fast breathing, and no other pneumonia-defining signs are present.