I lost hot water in all my faucets. I drained my hot water heater, flushed it and also replaced the pressure regulator on top. I got my hot water with full pressure in all but my kitchen faucet. The hot water has about half the pressure it should. It is a single handle faucet. Is their something I can do to remedy this, or do I need to replace the faucet.

Thanks,
Jay

Most likely won't have to replace faucet. I would start by removing the cartridge, cleaning it, and reinstall it. Let me know if this helps. If not, we will take the next step. Good luck.

Another option to try before you buy a new faucet.
When you flushed out water heater it may have loosen some scale/rust. Try this. Remove the areator( a screen to catch dirt and put air in water so it does not splash all over) from faucet spout. Turn faucet to full open to flush out the valve and then clean areator and screw back in.

Good luck
hawk_eye