Community nurses working in rural parts of the Highlands have asked that cars they are provided with be fitted with snow tyres as standard in winter.
Staff have contacted Labour MSP Rhoda Grant to highlight that under car leasing agreements they have to pay for the tyres themselves.
Ms Grant said it was "ludicrous" nurses were having to foot the bill.
NHS Highland said it would investigate whether the agreements, which are set at national level, could be changed.
Ms Grant said: "It seems to be ludicrous that community nurses are prevented from having their cars fitted with tyres that are more appropriate to the winter conditions in the areas they cover.
"These journeys would be safer if their cars were better equipped to deal with winter conditions."