Christchurch Hospital has made emergency plans to set up tents outside the building to cope with too many patients during winter, according to RNZ.

Dr Dominic Fleischer, a doctor at the hospital, told RNZ's Morning Report about the tent plans and what is happening inside. Beds in the emergency department corridors are being placed at an angle rather than side by side, he said, so more patients can fit in the space.

Patients in those corridors do not have monitors to track their condition, call buttons to get a nurse's attention, or meal service, according to Dr Fleischer. Some spend hours or the whole night there.

This is happening despite the government giving $25 million in March to help hospitals add staff and beds before winter. Health NZ said it was adding 30 more temporary beds than first planned, bringing the total number of extra winter beds to 103 by mid-July.

Health Minister Simeon Brown said in a statement that Christchurch Hospital is one of the best-performing emergency departments. He said more than three in four patients are admitted, discharged, or transferred within six hours, which is the target the government sets for EDs.

A new urgent and after-hours service is due to open soon in Rolleston to help take some pressure off Christchurch Hospital.

The New Zealand Herald also reported on the tent plans and corridor conditions on 29 July, confirming the RNZ story.

The broader picture here is that both of these things can be true at the same time. The hospital is getting extra money and beds, and the minister can point to good performance numbers. But doctors are also describing corridor beds squeezed in at angles and plans for tents outside. They are different views of the same hospital under heavy winter pressure.

Brown's figure that more than three in four patients meet the six-hour target is accurate, but it also means roughly one in four patients wait longer than six hours. In a busy emergency department during winter, that adds up to a lot of people waiting a long time, and some of those are the patients who end up in angled corridor beds.

The Rolleston service, when it opens, should help by taking some patients from the Selwyn district. But it is not clear yet whether it will open in time for this winter's busiest period, and one new facility in a neighbouring town will not fix the bigger problem of not enough space at Christchurch Hospital.

The fact that a senior doctor has gone on national radio to describe what is happening inside the ED is significant. When frontline staff speak publicly like this, it usually means they have already tried every internal option to manage the problem and those options are not enough. It also puts the issue on the political radar, and Brown's statement can be read as an attempt to put his side of the story out there first.

For now, the minister's target numbers and the doctor's description of corridor beds exist side by side as two accounts of the same hospital under strain. What will tell the story is whether the tent plans actually need to be used.