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: patient recorded as having no known allergies to drugs attending: chief complaint: l knee pain major surgical or invasive procedure: l tka history of present illness: the patient is a 66 yo m with long-standing history of l knee pain, limited rom and difficulties with activities of daily living. the patient has met the clinical and radiographic indications for joint arthroplasty and wished to proceed with the above procedure. prior to admission the patient has been feeling well with no recent illness, no shortness of breath, no chest pain and has been cleared medically for the surgical procedure. patient has a history of tracheomalacia and osa - all precautions have been discussed with the anesthesia team and the patient will be monitored closely post-operatively for apneic episodes. past medical history: dm ii, htn, hyperlipidemia, obesity, osa/tracheomalacia, bph, gerd social history: non contrib family history: non contrib physical exam: afebrile vss, a/ox3 lcta bilaterally rrr abd soft, ntnd, +bs ble fully nvi distally with 2+ dp pulses and full strength throughout painful and limited rom of l knee pertinent results: 07:45am blood wbc-9.3 rbc-3.53* hgb-10.3* hct-29.3* mcv-83 mch-29.2 mchc-35.1* rdw-13.7 plt ct-161 02:30am blood wbc-9.7 rbc-4.18* hgb-12.0* hct-34.5* mcv-83 mch-28.7 mchc-34.7 rdw-13.6 plt ct-188 06:55am blood plt ct-163 07:45am blood plt ct-161 02:30am blood plt ct-188 02:30am blood glucose-192* urean-18 creat-0.9 na-138 k-3.9 cl-104 hco3-26 angap-12 02:30am blood calcium-8.4 phos-3.7 mg-1.5* brief hospital course: the patient was admitted on and taken to the operating room by dr. where the patient underwent left knee total joint arthroplasty. the procedure was well tolerated there were no complications. please see the separately dictated operative report for details regarding the surgery. the patient was subsequently transferred to the post-anesthesia care unit in stable condition and transferred to the icu later that day for close monitoring of his oxygen status. overnight, the patient was placed on a ketamine drip for pain control dictated by the acute pain service. the patient did not tolerate cpap but had o2 saturations in the high 90's on shovel mask. iv antibiotics were continued for 24 hours postoperatively for prophylaxis. lovenox was started the morning of pod#1 for dvt prophylaxis. the patient was placed in a cpm machine with range of motion set at 0-45 degrees of flexion up to 90 degrees as tolerated. on postoperative day 1, the drain and foley were removed without incident. the patient was transferred to the floor in stable condition with continuous o2 sat, telemetry, and the ketamine drip. on postoperative day 2, the ketamine was d/c'd and the patient was placed on low dose oxycodone. the surgical dressing was also removed, and the surgical incision was found to be clean, dry, and intact without erythema nor purulent drainage. during the hospital course the patient was seen daily by physical therapy. labs were checked both post-operatively and throughout the hospital course and repleted accordingly. the patient was tolerating regular diet and otherwise feeling well. prior to discharge the patient was afebrile with stable vital signs. hematocrit was stable and pain was adequately controlled on a po regimen. the operative extremity was neurovascularly intact and the wound was benign. the patient was discharged to inpatient rehabilitation in a stable condition medications on admission: lipitor, lisinopril, metoprolol, ranitidine, mvt, calan, metformin discharge medications: 1. acetaminophen 325 mg tablet sig: two (2) tablet po q6h (every 6 hours). 2. enoxaparin 40 mg/0.4 ml syringe sig: one (1) syringe subcutaneous once a day for 3 weeks. 3. aluminum-magnesium hydroxide 225-200 mg/5 ml suspension sig: 15-30 mls po q6h (every 6 hours) as needed. 4. docusate sodium 100 mg capsule sig: one (1) capsule po bid (2 times a day). 5. bisacodyl 5 mg tablet, delayed release (e.c.) sig: two (2) tablet, delayed release (e.c.) po daily (daily) as needed. 6. magnesium hydroxide 400 mg/5 ml suspension sig: thirty (30) ml po bid (2 times a day) as needed. 7. hexavitamin tablet sig: one (1) cap po daily (daily). 8. ferrous sulfate 325 mg (65 mg iron) tablet sig: one (1) tablet po daily (daily). 9. cholecalciferol (vitamin d3) 400 unit tablet sig: one (1) tablet po daily (daily). 10. calcium carbonate 500 mg tablet, chewable sig: one (1) tablet, chewable po tid (3 times a day). 11. metformin 850 mg tablet sig: one (1) tablet po bid (2 times a day). 12. verapamil 240 mg tablet sustained release sig: 0.5 tablet sustained release po q24h (every 24 hours). 13. ranitidine hcl 150 mg tablet sig: one (1) tablet po bid (2 times a day). 14. metoprolol tartrate 50 mg tablet sig: two (2) tablet po bid (2 times a day). 15. lisinopril 20 mg tablet sig: two (2) tablet po daily (daily). 16. atorvastatin 10 mg tablet sig: one (1) tablet po hs (at bedtime). 17. oxycodone 5 mg tablet sig: 1-2 tablets po q3h (every 3 hours) as needed. discharge disposition: extended care facility: - discharge diagnosis: l knee oa discharge condition: stable discharge instructions: please seek medical attention if you have any nausea, vomiting, fever greater than 101.5, chest pain, shortness of breath, increased pain/redness/drainage from your incision site, numbness/tingling, or any other concerning symptoms. take all medications as prescribed and resume home medications, please take a stool softener if taking narcotic pain medications, please taper down pain medication use as tolerated. no driving nor operating heavy machinery while using narcotic pain medications. you should take iron supplementation to boost your blood count for 4 weeks. ferrous sulfate 325mg once a day. anticoagulation: take lovenox injections (40mg) once a day x 3 weeks and then take aspirin 325 mg twice a day x 3 weeks. discontinue all blood thinners 6 weeks post-operatively. wound care: keep your incision clean and dry. okay to shower after pod#5 but do not tub-bath or submerge your incision. please place a dry sterile dressing to the wound each day if there is drainage, leave it open to air. check wound regularly for signs of infection such as redness or thick yellow drainage. staples will be removed by vna on pod 14. if going to rehab, then rehab can remove staples @ 2 weeks. activity: weight bearing as tolerated to operative leg, cpm machine advance as tolerated. no strenuous exercise or heavy lifting until follow up appointment, at least. vna (after home): home pt/ot, dressing changes as instructed, and wound checks, staple removal on pod 14. physical therapy: wbat, cpm advance as tolerated, no prolonged bedrest, ambulation encouraged treatments frequency: staples to be d/c'd pod14 followup instructions: you have a follow-up appointment with dr. office in one month. please call to confirm/schedule your appointment. procedure: non-invasive mechanical ventilation injection of antibiotic total knee replacement diagnoses: obstructive sleep apnea (adult)(pediatric) esophageal reflux unspecified essential hypertension hypertrophy (benign) of prostate without urinary obstruction and other lower urinary tract symptom (luts) other and unspecified hyperlipidemia diabetes with other specified manifestations, type ii or unspecified type, not stated as uncontrolled obesity, unspecified osteoarthrosis, unspecified whether generalized or localized, lower leg other diseases of trachea and bronchus family history of diabetes mellitus 

Answer: The patient is high likely exposed to