(a) Sick leave shall be used to continue the employee’s regular pay when the employee is unable to work for any of the following reasons:
(1) The medical condition of the employee,
(2) The medical condition of a member of the employee’s immediate family residing with the employee such as to require the personal care and attendance of the employee,
(3) To attend scheduled appointments for medical or dental examinations or treatments of the employees, or
(4) To make arrangements for and attend a funeral of a member of the employee’s immediate family.
(b) For the purpose of this Section 185.11 “immediate family” means the employee’s spouse, parent, step-parent, child, step-child, sibling, brother-in-law, sister-in-law, father-in-law, mother-in-law, grandparent, grandchild, daughter-in-law, son-in-law, and also includes other relatives who reside with the employee.