Relief is to be provided for needy persons who are in need of immediate relief and who are eligible for, and are awaiting approval and receipt of assistance under, programs provided by State or Federal law, or whose actual needs, as defined within the limitation imposed by this chapter, cannot be fully met by the assistance furnished under such programs. Income guidelines of 150% of Federal Poverty levels shall be used to determine eligibility. Deductions from income for payments made on medical bills will be allowed if currently applicable. Applicants will be considered on a case-by-case basis if just cause and extenuating circumstances can be shown by the client.