If albumin is detected in a urine sample collected at random, over 4 hours, or overnight, the test may be repeated and/or confirmed with urine that is collected over a 24-hour period (24-hour urine).
Say, for my $20 pedicure, I gave $3 tip to my foot scrubber and leg massager/toenail painter. The 2 ladies I went with gave nothing. It felt awkward, but my husband having worked in the restaurant and retail worlds, insists we tip due to personal experience. If your facial is $40, tip $6-$10. I average on an 18% scale, but 15-20% is perfectly acceptable and very generous. For mother's day, we give my mom a hot stone massage and a pedicure. We always send her with $25-$30 extra for tips.
But the service is already so expensive!! With proper tipping etiquette, the percentages of your tips do not change because of the cost of the service. Let's take a hair salon, for example. Of course, you can always tip on the lower end of 10-20%. But if you are going to go to a more expensive salon, then it is assumed that you can afford $120 plus tip.