Participants who met the criteria for inclusion in the study and volunteered to participate in the study were divided into experimental and control groups by block randomization method.

After obtaining written informed consent, the Patient Information Form, Mini Nutritional Assessment- Short Form, Confusion Assessment Method, Barthel Index and Visual Analog Scale were applied to patients. Nursing care was applied to hip fracture patients in the experimental group in accordance with the care protocol developed to prevent delirium. Delirium preventive care protocol was consist of; psychosocial care, monitoring of oxygen saturation, prevention of dehydration, nutritional support, normal elimination, pain control, sleep regulation, avoidance of bladder catheterization and early mobilization.

Confusion Assessment Method, Barthel Index and Richards-Campbell Sleep Questionnaire were repeated to patients on the first postoperative day and on the third day.

After obtaining written informed consent, the Patient Information Form, Mini Nutritional Assessment- Short Form, Confusion Assessment Method, Barthel Index and Visual Analog Scale were applied to patients. Routine nursing care was applied to hip fracture patients in the control group. Confusion Assessment Method, Barthel Index and Richards-Campbell Sleep Questionnaire were repeated to patients on the first postoperative day and on the third day.

Nursing care was applied to hip fracture patients in the experimental group in accordance with the care protocol developed to prevent delirium. Delirium preventive care protocol was consist of; psychosocial care, monitoring of oxygen saturation, prevention of dehydration, nutritional support, normal elimination, pain control, sleep regulation, avoidance of bladder catheterization and early mobilization.

Confusion Assessment Method, Barthel Index and Richards-Campbell Sleep Questionnaire were repeated to patients on the first postoperative day and on the third day.

It was applied to patients at first admission to the clinic, on the first and third postoperative day. The scale developed by Richards in 1987; It consists of six items that assess the depth of night's sleep, the time to fall asleep, the frequency of waking up, the time to wake up, the quality of sleep and the noise level in the environment. Each item is evaluated on the chart from 0 to 100. A score of 0-25 indicates a very poor sleep and a score of '76 -100 indicates a very good sleep. The higher the scale score, the better the sleep quality of the patients.

The total sleep score is calculated by taking the average of the depth of sleep, the time to fall asleep, the frequency of waking up, the time to stay awake and the quality of sleep.

Patients filled at frst admission to the clinic, on the first and third postoperative day was developed in 1965 by Mahoney and Barthel. It is used to determine the level of independence of individuals in their activities. The Barthel Index measures the social and physical function of daily life and consists of 10 items that assess the individual's ability to meet daily functions (nutrition, bathing, personal care, dressing, toileting, mobility on flat surfaces, transfer, climbing stairs, bowel and bladder function) without assistance. Each item is scored between 0-15 (varies according to the question). Barthel Index total scores vary between 0-100; 0-20 points completely addiction; 21-61 points severe addiction; Moderate dependence of 62-90 points; 91-99 points mild addiction; 100 points explain independence. In the studies using the Barthel Index, 60 points were taken as the limit and scores above 60 explain the ability to function independently.

It was applied to patients at first admission to the clinic, on the first and third postoperative day. It is used to measure the severity of pain. It is easy to use and the same in every language. At the two ends of a ten-centimeter line, two end definitions of the parameter to be evaluated are written and the patient is asked to indicate where his or her condition is appropriate by drawing a line or by pointing or pointing (0: I have no pain, 10: I have unbearable pain). The length of the distance from the absence of pain to the location of the patient indicates the pain of the patient. Less than three of this numerical expression indicates mild pain, three to seven indicates moderate pain, and more than seven indicates severe pain.

It was applied to patients at first admission to the clinic, on the first and third postoperative day and in cases of change of consciousness. The scale was developed by Ely et al in 2001. The scale consists of four items. In the first item, sudden changes in consciousness or fluctuation; In the second article, squeezing the hand with letter A in less than 12 in the attention assessment test tests the two most important signs of delirium, fluctuations in the level of consciousness and distortion of attention. In the third article, it is evaluated whether the thought organization is disrupted or not by four questions and a simple command. The fourth item is related to the assessment of consciousness level. According to this scale, the first two items and one of the third or fourth items must be positive for the diagnosis of delirium. CAM-ICU, which is the most widely used scale that best complies with Diagnostic and Statistical Manual of Mental Disorders.