“Open” describes a building or service status.It does not guarantee treatment
1

Route

Can the patient and referral vehicle reach the facility?

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2

Supplies and power

Are fuel, medicines, blood and electricity available?

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3

Clinical staff

Is the required specialist or trained team present?

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4

Suitable capacity

Is there a bed, incubator or operating room for this case?

If a link fails
The patient may wait, travel farther, be transferred or be turned away.
What can remain true
The facility may still be recorded as open or functioning for other services.
Effective capacity is patient-specific: it is the care actually reachable at the time it is needed.