These are an approximation to the IHT rules, but as menitoned above the deprivation of asset rules really are the relevant ones.
The exempt gift rules are up to £3,000 to one person, and gifts to as many people as wanted in a tax year, there is no requirement for any of the people to be close family and there is no life expectancy requirement.
However regular gifts out of income can be made of any size.
The reference to IHT threshold is not relevant.
Larger gifts can be made and become exempt if the person survives for 7 years.
As is regularly stated on here, the IHT rules have no relevance for someone who can anticipate the need for monies being required for their care.
If you look at Court of Protection rulings regarding financial gifts, you'll see that life expectancy, iht threshold and the value of gifts and to whom are all relevant.