Resupply ships historical question

[GoldenRivet]

Assume you are a u-boat commander on patrol near Casablanca / Gibralter

Scenario:

Late one evening you encounter a lone merchant west of Gibralter. Moving in for the kill you opt for a night surfaced attack on the unarmed tramp steamer.

Lining the ship up in the UZO, it quickly becomes apparent that something is amiss.

Searchlights flood in your directions. The sides of false boxes and containers fall away revealing .50 cal, 20mm and 5" guns... It's a Q-ship

The smaller caliber weapons open fire on your boat and one of your senior officers catches a ricochet in the neck.

The boat submerges with no damage, but the man's wound is grievous. The most medically qualified member of your crew stops the bleeding and advises you that the man will die without treatment.

You set course for the Corrientes resupply ship in Las Palmas as you can make it there at full speed within 15 hours

The question:

Historically speaking, Would corrientes (or any resupply ship) have had a doctor and any sort of clinic/ sick bay aboard of a suitable nature to stabilize the man for transport back to the uboat base in France?