Cerebral Perfusion Pressure Case Study (60 min)
Included In This Lesson
Study Tools For Cerebral Perfusion Pressure Case Study (60 min)
Outline
Mrs. Ramirez is a 61 year old female who presents to the Emergency Department (ED) complaining of a headache and fatigue. Her temperature is 102.6°F and nuchal rigidity is noted when trying to flex Mrs. Ramirez’s neck. The charge nurse suspects she has meningitis and immediately places her in a closed room under droplet precautions. The provider performs a lumbar puncture which shows elevated white blood cell count and a decreased glucose level. Mrs. Ramirez’s temperature has increased to 103.5°F. She is oriented x 3, but drowsy. The provider starts her on IV antibiotics as ordered and initiates q1h neuro checks. Mrs. Ramirez is admitted to the ICU. She receives 1g Acetaminophen PO for her fever. One hour after admission to the ICU, you go to reassess Mrs. Ramirez’s neuro status. You find that she is somnolent, oriented x 1, and her pupils are unequal (right larger than left) but reactive to light. The CT scan shows a large amount of edema on the right side of Mrs. Ramirez’s brain, as well as some hydrocephalus. The ICU Provider determines Mrs. Ramirez will need an External Ventricular Drain (EVD). The EVD is inserted successfully and shows an ICP of 17 mmHg. The patient’s vital signs are as follows: BP 122/52 MAP 75 HR 78 RR 32 SpO2 96% Room Air Temp 102.9°F
What should be included in your routine q1h neuro exam?
What additional adjunct assessments could be included in your neuro exam?
Calculate the patient’s Cerebral Perfusion Pressure (CPP). Is it sufficient? What is the goal? What is the risk if the CPP falls too low?
What interventions could be requested from the provider to keep the patient safe??
The EVD is open to drain at 10 cmH2O (7-8 mmHg). It is draining a moderate amount of serosanguineous fluid. Mrs. Ramirez is confused and begins to get agitated. She is placed in bilateral soft wrist restraints for safety and to prevent her from pulling out the EVD. She continues to pull at the restraints and is thrashing in bed. She is drooling excessively and doesn’t seem to be able to swallow effectively as she keeps coughing. Her ICP is reading 14 mmHg. Her BP is 92/44, MAP 60.
Calculate the patient’s CPP. Is it sufficient? Explain.
What interventions could be requested from the provider to keep the patient safe?
What assessment findings would indicate increasing ICP after removal of the EVD?
Nursing Case Studies
This nursing case study course is designed to help nursing students build critical thinking. Each case study was written by experienced nurses with first hand knowledge of the “real-world” disease process. To help you increase your nursing clinical judgement (critical thinking), each case study includes answers laid out by Blooms Taxonomy to help you see that you are progressing to clinical analysis.
We encourage you to read the case study and really through the “critical thinking checks” as this is where the real learning occurs. If you get tripped up by a specific question, no worries, just dig into an associated lesson on the topic and reinforce your understanding. In the end, that is what nursing case studies are all about – growing in your clinical judgement.