Yes, you should think about how much you are worth, and aim for that pay. However, in hourly positions, you don't really have the option to negotiate. They may ask what type of pay you are looking for, but usually what you say doesn't matter because they already have a determined pay rate.
According to the latest estimates, the cost for taking the HESI exam can range anywhere from $35 to $70. Costs vary according to the institution administering the test and you should contact your chosen location for details on this.
How Much Does Allergy Testing Cost? For a patient not covered by health insurance an allergy test typically costs $150 to $300 for a consultation with an allergist, plus $60 to $300 total ($3 to $5 per allergen) for the much more commonly used skin prick test, or $200 to $1,000 total ($10 to $20 per allergen) for a blood test known as a RAST test.