The prognosis for patients with AKI is directly related to the cause of renal failure and, to a great extent, to the presence or absence of preexisting kidney disease (estimated GFR [eGFR] < 60 mL/min), as well as to the duration of renal dysfunction prior to therapeutic intervention.
Not only should you tip your hairdresser, you should also tip the person who washes your hair. Multiply the dollar amount of the bill by 0.15 if the service was good but not exceptional. One way to think of this is that for every dollar your hairdresser charges, you should tip him 15 cents.
The more services a hairstylist offers, the more a tip is appreciated. She also draws distinction between an independent contractor and a commissioned employee. The latter may only earn 60 to 70 percent, or even as little as 30 percent, of the salon's listed service cost. The rest goes to the salon, so tips are even more significant to these stylists. Depending on the salon, tipping the shampoo person may or may not be necessary.