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: history of present illness: the patient is a 73 nursing home resident with a history of hypertension and alzheimer's dementia who presented with an episode of loss of consciousness after defecating. by report by the nursing home staff, the patient had been recently constipated but otherwise in his usual state of health and had been a recent aggressive bowel regimen. on the day of admission, the patient had a large bowel movement with some bright blood per nursing home records. he was found unconscious on the toilet with no report of head trauma or a fall. the patient was unresponsive to voice, and vital signs revealed a temperature of 99.5, heart rate was in the 70s, and blood pressure was 90/50. the patient was transferred to for further evaluation. he was unresponsive to sternal rub and did not have a gag reflex. his systolic blood pressure was in the 70s. his fingerstick at that time was 200, and the patient received one dose of narcan with no response. he was intubated for airway protection and taken to the intensive care unit for further monitoring. of note, the patient had guaiac-positive brown stool in the emergency department, and his laboratory studies were significant for a hematocrit of 32 (which is the patient's baseline) and a creatinine of 3.3 (which was elevated from a bowel sounds of 1). the patient was given 2 liters of normal saline, and his blood pressure improved to 120 systolic. past medical history: 1. hypertension. 2. dementia; alzheimer's type. 3. psychosis. 4. history of depression. 5. elevated cholesterol. 6. history of prostatitis. allergies: the patient has no known drug allergies. medications on admission: 1. mirtazapine 15 mg p.o. q.h.s. 2. trazodone 25 mg p.o. once per day (at 1:30 p.m.). 3. olanzapine 2.5 mg p.o. once per day (at 4 p.m.). 4. olanzapine 5 mg p.o. once per day (at 10 p.m.). 5. gabapentin 600 mg p.o. twice per day. 6. terazosin 1 mg p.o. q.h.s. 7. calcium carbonate 500 mg p.o. once per day. 8. multivitamin one tablet p.o. once per day. 9. lactulose 30 cc p.o. twice per day. 10. colace 200 mg p.o. once per day. 11. propranolol 5 mg p.o. twice per day. social history: the patient lives at . at baseline, the patient is interactive, walks, and talks; but is not oriented. he has a supportive family involved in his care. review of systems: on review of systems, the patient has had no recent fevers, no cough, and no localizing symptoms (per nursing home staff). he has no prior history of a seizure disorder. physical examination on presentation: on physical examination, the patient was afebrile with a temperature of 98, heart rate was 72, blood pressure was 130/70, respiratory rate was 14, and oxygen saturation was 100% on ventilator. in general, the patient was intubated and responded to sternal rub as well as manipulation of the endotracheal tube. the neck was supple with no midline tenderness and no lymphadenopathy. head and neck examination revealed pupils were minimally reactive and mild bloody secretions from the mouth; likely secondary to traumatic nasogastric tube placement. the lungs revealed rhonchorous breath sounds bilaterally with decreased breath sounds at the bases, and no wheezes. cardiovascular examination revealed a regular rate and rhythm. a 2/6 systolic ejection murmur at the left upper sternal border. the abdomen was soft with no tenderness, and no masses. rectal examination revealed soft brown guaiac-negative stool. extremities had no edema. neurologic examination revealed flaccid extremities but increasing rigidity of the upper extremities with full range of motion. there was no obvious facial droop. pertinent laboratory values on presentation: laboratory studies revealed the patient's hematocrit was 31.9 (unchanged from baseline of 32). chemistry-7 panel was significant for a blood urea nitrogen of 53 and a creatinine of 3.3. initial creatine kinase was 724 with a troponin of less than 0.3, mb was 12, and index was 1.7. inr was within normal limits. pertinent radiology/imaging: a chest x-ray revealed no pneumothorax, no pneumonia, and proper placement of the endotracheal tube. a head computed tomography revealed no acute bleed, with normal ventricles and fossae, with no mass effect. electrocardiogram revealed a normal sinus rhythm at 70 beats per minute with normal axis and intervals. decreased r waves in v5 and v6 (which were old). no acute st changes. hospital course by issue/system: 1. loss of consciousness issues: the patient's syncope was evaluated by telemetry which showed no arrhythmias over 48 hours. an electroencephalogram was normal, and a transthoracic echocardiogram was a limited study but demonstrated no significant valvular abnormalities. the etiology of the loss of consciousness was probably a vasovagal event secondary to defecation in combination with dehydration. blood cultures were negative, and the patient remained afebrile throughout and demonstrated no evidence for infection or sepsis. he maintained good blood pressures with continued intravenous fluids and was extubated on the second hospital day. he had no further episodes of loss of consciousness during his hospitalization. 2. acute renal failure issues: the patient's renal failure was likely due to dehydration. his creatinine improved to baseline with intravenous fluids. his creatinine remained normal with oral intake. the patient's rhabdomyolysis also resolved with intravenous hydration with downward trending creatine kinases. 3. anemia issues: the patient's hematocrit decreased with intravenous fluids, and he was transfused with 2 units of packed red blood cells. his hematocrit increased appropriately and remained stable at 35 status post transfusion. he had intermittently guaiac-positive stools, and further investigation revealed that he had not had a recent colonoscopy. an outpatient colonoscopy was arranged for further evaluation and will be followed up by the patient's primary care provider. condition at discharge: condition on discharge was stable. discharge disposition: discharged to . discharge diagnoses: 1. dehydration. 2. acute renal failure. 3. rhabdomyolysis. medications on discharge: 1. mirtazapine 15 mg p.o. q.h.s. 2. trazodone 25 mg p.o. once per day (at 1:30 p.m.). 3. olanzapine 2.5 mg p.o. once per day (at 4 p.m.). 4. olanzapine 5 mg p.o. once per day (at 10 p.m.). 5. gabapentin 600 mg p.o. twice per day. 6. terazosin 1 mg p.o. q.h.s. 7. calcium carbonate 500 mg p.o. once per day. 8. multivitamin one tablet p.o. once per day. 9. lactulose 30 cc p.o. twice per day. 10. colace 200 mg p.o. once per day. 11. propranolol 5 mg p.o. twice per day. discharge instructions/followup: 1. the patient was to have an outpatient colonoscopy on with dr. . 2. the patient was to follow up with his primary care provider. , m.d. dictated by: medquist36 procedure: continuous invasive mechanical ventilation for less than 96 consecutive hours venous catheterization, not elsewhere classified insertion of endotracheal tube arterial catheterization diagnoses: unspecified essential hypertension acute kidney failure, unspecified depressive disorder, not elsewhere classified blood in stool alzheimer's disease dementia in conditions classified elsewhere without behavioral disturbance syncope and collapse other disorders of muscle, ligament, and fascia 

Answer: The patient is high likely exposed to