What immediate action should a PCA take if Mrs. Rand, a diabetic patient, feels nervous and jittery?

In the scenario where Mrs. Rand, a diabetic patient, feels nervous and jittery, providing her with a glass of orange juice is an appropriate immediate action because it serves to quickly address potential low blood sugar (hypoglycemia). Orange juice is a source of fast-acting carbohydrates, which can help raise blood glucose levels effectively and promptly. This quick intervention can alleviate her symptoms and prevent further complications if she is experiencing hypoglycemic episodes.

While checking her blood sugar levels could provide valuable information regarding her condition, immediate relief from her discomfort is essential, and treating potential low blood sugar should take precedence, especially if she is exhibiting signs associated with hypoglycemia. Relying on a nurse's visit would delay necessary treatment, which is not ideal when immediate action can bring about relief. Calling for help may be appropriate in a different context, but in this situation, the PCA is equipped to administer quick treatment for low blood sugar symptoms.