Hospital delirium - Nursing Case Study
Pathophysiology
• Primary mechanism: Neurotransmitter imbalance – Delirium often results from disruptions in neurotransmitters like acetylcholine and dopamine, which are crucial for brain function and can be affected by medications, infections, or metabolic disturbances.
• Secondary mechanism: Inflammation and stress response – Inflammation due to infection or surgery can increase cytokine levels, affecting brain function and leading to delirium. The body's stress response can further exacerbate this process.
• Key complication: Cognitive impairment – Delirium can lead to confusion, disorganized thinking, and altered consciousness, impacting a patient's ability to understand and follow care instructions, increasing the risk of falls and prolonged hospital stays.
Patient Profile
Demographics:
72-year-old male, retired teacher
History:
• Key past medical history: Hypertension, mild cognitive impairment
• Current medications: Lisinopril 10 mg daily, Aspirin 81 mg daily
• Allergies: Penicillin
Current Presentation:
• Chief complaint: Confusion and difficulty focusing
• Key symptoms: Mild disorientation, intermittent agitation, difficulty sleeping
• Vital signs: Blood pressure 128/76 mmHg, heart rate 82 bpm, respiratory rate 18 breaths per minute, temperature 98.6°F, oxygen saturation 97% on room air
Section 1
Initial Assessment Findings:
Upon conducting a thorough initial assessment of the 72-year-old male patient, the nursing team noted several key findings. The patient was alert but appeared mildly disoriented to time and place, frequently asking what day it was and occasionally becoming confused about his current location. He displayed intermittent agitation, particularly in the late afternoon, which aligns with the common pattern of "sundowning" seen in patients with delirium. His speech was clear, but he showed some difficulty with word-finding, which was a departure from his baseline as reported by his family. Physical examination revealed no focal neurological deficits, and his pupils were equal and reactive to light.
Vital signs remained stable with a blood pressure of 130/78 mmHg, heart rate of 84 bpm, respiratory rate of 18 breaths per minute, temperature of 98.8°F, and an oxygen saturation of 97% on room air. Baseline laboratory tests, including a complete blood count and basic metabolic panel, showed no acute abnormalities. However, a slight elevation in white blood cell count was noted, suggesting a possible underlying infection that may be contributing to the delirium. Additional tests, such as a urinalysis and chest X-ray, were ordered to rule out common sources of infection.
The nursing team also completed a Confusion Assessment Method (CAM) screening, which was positive for delirium. The patient's ability to focus attention was notably impaired, and he demonstrated fluctuating levels of consciousness throughout the assessment. These findings highlighted the importance of implementing strategies to minimize environmental stimuli and maintain a consistent routine to support the patient's cognitive function. The team planned to re-evaluate the patient regularly and collaborate with the healthcare team to adjust the care plan as necessary, prioritizing interventions to address possible infection sources and enhance orientation.
Section 2
Following the initial assessment, the new diagnostic results began to shed light on the underlying cause of the patient's delirium. The urinalysis returned positive for a urinary tract infection (UTI), indicated by the presence of leukocyte esterase and nitrites, as well as elevated white blood cells in the urine. This finding correlated with the slight elevation in the patient's white blood cell count, supporting the hypothesis that the UTI could be contributing to his delirium. The chest X-ray, however, showed no signs of pneumonia or other pulmonary issues, allowing the team to focus their treatment efforts on the identified infection.
In response to these results, the healthcare team initiated a course of antibiotics, specifically targeting the most common bacteria associated with UTIs in elderly patients. The plan included monitoring the patient's response to the antibiotics closely, as well as continuing supportive care measures to address the delirium. This involved ensuring a calm and structured environment, minimizing unnecessary noise and interruptions, and frequently orienting the patient to time and place. He was encouraged to engage in simple cognitive activities, such as reading or puzzles, during the day to help maintain cognitive function and reduce episodes of sundowning.
The nursing team also placed emphasis on hydration, recognizing that dehydration can exacerbate both UTIs and delirium. The patient was encouraged to drink fluids regularly, and his intake was carefully monitored. Vital signs were reassessed every four hours to detect any changes that might indicate a worsening infection or other complications. As the team awaited further culture and sensitivity results to confirm the appropriateness of the antibiotic choice, they remained vigilant for any signs of improvement or deterioration in the patient's condition, ready to adjust the care plan as necessary.
Section 3
Response to Interventions
After 48 hours of antibiotic treatment, the patient began showing signs of improvement. His initial confusion and agitation had lessened, and he was more oriented to his surroundings. The nursing team noted that he responded positively to orientation cues, such as clocks, calendars, and familiar family photographs. His participation in simple cognitive activities, like crossword puzzles, appeared to enhance his alertness and coherence, suggesting a favorable response to the combined interventions.
Vital signs remained stable, with a temperature of 98.6°F, blood pressure of 128/76 mmHg, heart rate of 78 beats per minute, and respiratory rate of 18 breaths per minute. His fluid intake was adequate, and he reported feeling more comfortable as his symptoms of delirium decreased. The patient’s urine output was monitored closely, with a noted increase in clarity and a decrease in odor, indicating a positive response to the antibiotic therapy. These observations were encouraging, as they suggested that the underlying infection was being effectively managed.
However, the team remained cautious, aware that the risk of dehydration or recurrence of delirium still existed. They continued to prioritize hydration and monitored his fluid balance carefully. With the patient's condition stabilizing, the nursing team prepared to educate him and his family on the importance of completing the full course of antibiotics and maintaining good hydration to prevent future UTIs. As they awaited the final culture and sensitivity results, they remained vigilant for any changes in his condition, ready to modify the care plan if necessary. The patient's gradual improvement highlighted the importance of timely intervention and holistic care in managing delirium in the hospital setting.
Section 4
New Complications
Despite the patient’s initial improvement, on the third day of hospitalization, the nursing team observed a slight change in his condition. The patient began to exhibit mild restlessness and occasional confusion during the night, which was not present earlier in the day. He seemed to have difficulty sleeping, which was unusual given his recent progress. The nursing team noted these changes during their routine assessments and decided to monitor him closely for any further deviations from his baseline status.
In response to these observations, the team conducted a thorough assessment to identify any potential new complications. Vital signs remained stable with a temperature of 98.7°F, blood pressure of 130/78 mmHg, heart rate of 80 beats per minute, and respiratory rate of 19 breaths per minute. However, a review of his medication administration revealed that he had missed an evening dose of his prescribed sleep aid, which might have contributed to his disrupted sleep pattern and subsequent confusion. To address this, the team ensured the timely administration of his medication and implemented additional non-pharmacological interventions, such as a calming bedtime routine and minimizing nighttime disruptions, to promote rest.
To prevent further complications, the nursing team reinforced the importance of maintaining a calm and quiet environment during nighttime hours and encouraged family members to assist in creating a familiar and reassuring atmosphere for the patient. They also planned to reassess his hydration status and review his current medication regimen with the attending physician to ensure optimal management of his delirium and prevention of future episodes. By addressing these new complications promptly, the team aimed to stabilize the patient's condition and support his continued recovery.
Section 5
Response to Interventions
Following the implementation of both pharmacological and non-pharmacological interventions, the nursing team closely monitored the patient for any changes in his condition. On the morning of the fourth day, the patient appeared more rested and coherent compared to the previous night. His vital signs remained stable, with a temperature of 98.6°F, blood pressure of 128/76 mmHg, heart rate of 78 beats per minute, and a respiratory rate of 18 breaths per minute. The patient reported feeling more relaxed and mentioned that he had a better night's sleep, attributing this improvement to the calming bedtime routine and the timely administration of his sleep aid. The nursing team noted a decrease in restlessness and confusion during their routine assessment, indicating a positive response to the interventions.
The team continued to engage the patient in conversations to assess his cognitive status and found him to be oriented to person and place, with slight difficulty recalling the date, which was consistent with his baseline status. Hydration status was deemed adequate upon reassessment, with skin turgor returning to normal and urine output within expected parameters. Encouraged by these findings, the nursing team reinforced the importance of maintaining these interventions, including the calming environment and medication adherence. They also communicated these positive developments to the attending physician, who agreed to continue the current management plan while remaining vigilant for any new complications.
The next steps involved educating both the patient and his family about the signs of hospital delirium and the importance of early detection and intervention. By fostering a collaborative approach, the nursing team aimed to empower the family to assist in monitoring the patient's condition. This proactive strategy was intended to prevent future episodes and support the patient's ongoing recovery, setting the stage for a successful discharge planning process.