Answer patient call signals, signal lights, bells, or intercom systems to determine patients' needs. Turn or reposition bedridden patients. Provide physical support to assist patients to perform daily living activities, such as getting out of bed, bathing, dressing, using the toilet, standing, walking, or exercising. Review patients' dietary restrictions, food allergies, and preferences to ensure patient receives appropriate diet. Measure and record food and liquid intake or urinary and fecal output, reporting changes to medical or nursing staff. Record vital signs, such as temperature, blood pressure, pulse, or respiration rate, as directed by medical or nursing staff. Gather information from caregivers, nurses, or physicians about patient condition, treatment plans, or appropriate activities. Observe or examine patients to detect symptoms that may require medical attention, such as bruises, open wounds, or blood in urine. Document or otherwise report observations of patient behavior, complaints, or physical symptoms to nurses. Remind patients to take medications or nutritional supplements. Feed patients or assist patients to eat or drink. Supply, collect, or empty bedpans. Undress, wash, and dress patients who are unable to do so for themselves. Lift or assist others to lift patients to move them on or off beds, examination tables, surgical tables, or stretchers. Communicate with patients to ascertain feelings or need for assistance or social and emotional support. Prepare or serve food trays. Clean and sanitize patient rooms, bathrooms, examination rooms, or other patient areas. Record height or weight of patients. Collect specimens, such as urine, feces, or sputum. Apply clean dressings, slings, stockings, or support bandages, under direction of nurse or physician. Change bed linens or make beds. Restock patient rooms with personal hygiene items, such as towels, washcloths, soap, or toilet paper.