Consider the following medical report that includes the patient's historical health records. Use it to predict the disease that the patient is high likely exposed to. 

 Medical Report: allergies: benzodiazepines attending: chief complaint: fell and hit head major surgical or invasive procedure: ct head mri/mra head and carotid/vertebral cta head l subclavian line placement history of present illness: is a 74-year-old woman with a history of hypertension and postherpetic neuralgia of her left foot who presents with headache and dizziness after a mechanical fall. she was in her usual state of good health until developing shingles in her left foot and leg in ; this left her with post-herpetic neuralgia in her foot,which has made it difficult to walk and has caused her to feel ??????off-balance.?????? close to midnight on the night of admission she was carrying laundry upstairs when she lost her balance, fell backwards, and hit her head on the carpeted floor. she does not believe she lost consciousness. she did not have light-headedness, dizziness, chest pain, or palpitations prior to the fall, and did not lose bowel or bladder control or feel confused afterwards. she has no history of seizures. after the fall she felt very dizzy and crawled up the stairs to alert her husband. on the way she felt an urgent need to have a bm and went to the bathroom. after reaching her husband, ems was called and the patient was taken to the ed, where a head ct showed a possible small subarachnoid hemorrhage in the right temporal lobe and old frontal hygromas. she was transferred to the , where a repeat head ct showed a subarachnoid hemorrhage within the bilateral parietal sulci and right temporal lobe anteriorly, as well as within the ventricular system. in the er she complained of vertigo, nausea, and bifrontal and occipital headaches. she was evaluated by neurosurgery, who felt no need for surgical intervention. she was admitted to medicine for further workup and monitoring. past medical history: hypertension zoster l leg and foot, now with postherpetic neuralgia chronic low back pain social history: lives at home with husband and puppy. former yoga teacher. remote history of smoking (1 pack per week for 5 years). two to three glasses of wine per week. no drugs. three daughters in the area. family history: htn and dm2 in father physical exam: vitals: tc 99.1, tm 99.1, bp 143/91, p 108, r 20, o2 sat 96% on ra gen: alert, nad, lying in bed with lights off heent: no jvd or lad cards: rrr, no m/g/r pulm: ctab abd: soft, nt, nd ext: no le edema. l great toe slightly erythematous. neuro: ms . cn ii-xii . strength 5/5 in ue and le. sensation except for area of numbess on outer lle. reflexes brisk and symmetric at biceps, brachioradialis, and patella. babinski negative bilaterally. pertinent results: na 142, k 3.4, cl 104, hco3 28, bun 29, cre 0.9 wbc 12.4, hgb 11.6, hct 35.9, mcv 93, rdw 13.9, plt 280 pt 12.1, ptt 18.6, inr 1.0 head ct w/o contrast : subarachnoid hemorrhage within the bilateral parietal sulci and about the right temporal lobe anteriorly, as well as within the ventricular system as described above. the age of this hemorrhage is unclear. further evaluation could be performed with a lumbar puncture or an mri with flair imaging. cxr : no acute cardiopulmonary abnormality. brief hospital course: 1) neurology: a) subarachnoid hemorrhage/occipital fracture: an intitial head ct showed a subarachnoid hemorrhage within the bilateral parietal sulci and about the right temporal lobe anteriorly, as well as within the ventricular system. the patient was evaluated by neurosurgery in the ed, who felt there was no urgent need for intervention. a repeat head ct the day after admission showed no interval change in the patient's subarachnoid hemorrhage. a brain and carotid/vertebral mri/mra showed no dissection but did show findings suggestive of an arteriovenous malformation/fistula in the right frontal lobe. a cta was done on hospital day 4 for further characterization of this avm. it showed findings suggestive of a dural malformation, a stable appearance of the subarachnoid hemorrhage, as well as a nondisplaced fracture of the left occipital bone. neurosurgery felt there was no need for inpatient intervention, and the patient will follow up with them on an outpatient basis. b) vertigo: the patient complained of severe vertigo, which was partially releaved by anzemet and scopolamine patch. epley maneuvers provided some additional relief. at the time of discharge to rehab, she continued to have vertigo and will require vestibular physical therapy. c) headaches: the patient complained of occipital and frontal headaches, which were managed with tylenol and low-dose tramadol. d) postherpetic neuralgia: the patient's left foot postherpetic neuralgia was initially managed with her outpatient regimen of neurontin and nortryptiline, which were discontinued due to hyponatremia. they can be restarted on an outpatient basis. 2) hyponatremia: on admission, the patient's sodium was 142. it continued to be within normal limits until the morning of hospital day 4, when it fell to 124. the patient was then fluid restricted to 1500cc/day. urine lytes were sent and were consistent with siadh (urine osm 542, serum osm 260, urine na 134), which was felt to be due to the patient's sah. despite fluid restriction, the patient's sodium fell to 120 during the course of the day and she developed mental status changes. she was then transferred to the micu, where she was given 3% saline via a subclavian central line at 20cc/hr for 24 hours. she was also placed on a 500cc/day fluid restriction, and her hctz, neurontin, nortryptiline, and naproxen were discontinued. her sodium rose to 133 over 48 hours and she was transferred back to the floor. there, her fluid restriction was decreased to 1000cc/day and her sodium remained above 140. she was discharged on a 1000cc/day fluid restriction, which can be liberalized as an outpatient if her sodium remains within normal limits. 3) hypertension: the patient takes hctz at home, which was discontinued due to hyponatremia. she was placed on metoprolol 25mg po bid. hctz can be restarted on an outpatient basis when the patient's siadh is resolved. 4) low back pain: the patient takes celebrex at home. as this is a non-formulary drug, she was initially treated with naproxen while in-house, but this was discontinued due to hyponatremia. celebrex can be restarted on an outpatient basis when the patient's siadh is resolved. 5) full code medications on admission: neurontin 100mg qhs hctz 25mg po qam nortriptyline 50mg q24h celebrex 200mg qam discharge medications: 1. metoprolol tartrate 25 mg tablet sig: one (1) tablet po bid (2 times a day). 2. docusate sodium 100 mg tablet sig: one (1) tablet po bid (2 times a day) as needed for constipation. 3. calcium carbonate 500 mg tablet, chewable sig: one (1) tablet, chewable po bid (2 times a day). 4. senna 8.6 mg tablet sig: one (1) tablet po bid (2 times a day) as needed for constipation. 5. bisacodyl 10 mg suppository sig: one (1) suppository rectal hs (at bedtime) as needed for constipation. 6. acetaminophen 325 mg tablet sig: 1-2 tablets po q4-6h (every 4 to 6 hours) as needed for headache. 7. dolasetron mesylate 100 mg tablet sig: one (1) tablet po bid (2 times a day) as needed for dizziness, nausea. 8. scopolamine base 1.5 mg patch 72hr sig: one (1) patch 72hr transdermal q3days prn () as needed for nausea,dizziness. 9. tramadol 50 mg tablet sig: tablet po every 4-6 hours as needed for headache: please use only if tylenol is not effective. discharge disposition: extended care facility: - discharge diagnosis: subarachnoid hemorrhage siadh hyponatremia hypertension post-herpetic neuralgia discharge condition: ambulating with assistance, urinating/bming on own, eating 1000cc/day fluid-restricted diet. discharge instructions: alert your doctor if you have worsening headache, dizziness, or nausea, or other symptoms of concern to you. followup instructions: -- please call your primary care doctor for a follow-up appointment within one week after discharge from rehab. you will need to have your blood pressure and sodium checked and review your medications. -- please follow up with neurosurgery within one month to discuss management of an arteriovenous malformation seen on your mri. call to make an appointment with any of the neurosurgery attendings. procedure: venous catheterization, not elsewhere classified diagnoses: unspecified essential hypertension accidental fall on or from other stairs or steps other disorders of neurohypophysis herpes zoster with other nervous system complications other closed skull fracture with subarachnoid, subdural, and extradural hemorrhage, unspecified state of consciousness 

Answer: The patient is high likely exposed to