Please select the eligibility criteria that correspond to the clinical trial below.
Title: Ketamine Improves Post-Thoracotomy Analgesia
Brief Summary: Thoracotomy for lung tumor or for minimally invasive direct coronary artery bypass (MIDCAB) surgery, may be associated with debilitating pain. Ketamine was shown to enhance opioid antinociception and prevent opioid resistance. We hypothesize that ketamine given with morphine would lower morphine consumption and narcotic related side effects after thoracotomy and provide superior analgesia to morphine given alone.


Options:
A: Inclusion Criteria:

* Patients scheduled for robot-assisted thyroidectomy
* ASA I-III

Exclusion Criteria:

* Patients with renal dysfunction
* Patients with hepatic dysfunction
* Patients with neurologic dysfunction
* Patients with the history of drug addiction
* Patients with chronic pain
* Patients who are allergic to ketamine
* Patients with increased ocular or intracranial pressure
* Patients with the risk of aspiration
B: Inclusion Criteria:

* 18 Years to 65 Years ASA I and II Accepts healthy volunteers.

Exclusion Criteria:

alcohol or illicit drugs, H2 inhibitors, opioids, or calcium-channel blockers within the last 10 days chronic pain, myocardial ischemia, psychiatric diseases.
C: Inclusion Criteria:

* Consecutive patients scheduled for elective minimally invasive direct coronary artery bypass (MIDCAB) or for lung resection via anterolateral thoracotomy during a 6-month period (Sep 2001-March 2002)

Exclusion Criteria:

Exclusion criteria were:

* American Society of Anesthesiologists (ASA) physical class ≥3, Emergency operations,
* Q-wave myocardial infarct occurring during the previous 3 weeks, or poor left ventricular function (e.g., ejection fraction \[EF\] \<30% by echocardiography or angiography).

Other exclusion criteria were:

* A body mass index \>35 kg/m2,
* Past or current neuropathy or psychological disturbances,
* The use of centrally active drugs,
* Chronic liver or renal failure requiring dialysis,
* A FEV1/FVC \<70%,
* Allergy to ketamine, morphine or non steroidal anti inflammatory drugs (NSAIDs),
* Clotting abnormalities,
* A platelets count \<70000/mm3,
* A white blood count \<3000\>14000/mm3,
* Uncontrolled diabetes mellitus or fasting blood glucose \>250 g/dl,
* Evidence of sepsis or infection up to one week prior to randomization.
D: Inclusion Criteria:

* Patients 60 and older
* Competent to provide informed consent
* Undergoing major surgery (e.g., open cardiac surgery, open or thoracoscopic thoracic surgery, abdominal surgery, open urological surgery, open gynecological surgery, major orthopedic surgery, major vascular surgery including endovascular procedures, major ear, nose and throat surgery).

Exclusion Criteria:

* Patients with an allergy to ketamine
* Those in whom a significant elevation of blood pressure would constitute a serious hazard (e.g., pheochromocytoma, aortic dissection)
* Unable to provide informed consent
* Patients with drug misuse history (e.g., ketamine, cocaine, heroin, amphetamine, methamphetamine, MDMA, phencyclidine, lysergic acid, mescaline, psilocybin)
* Patients taking anti-psychotic medications (e.g., chlorpromazine, clozapine, olanzapine, risperidone, haloperidol, quetiapine, risperidone, paliperidone, amisulpride, sertindole)
* Patients with a weight outside the range 50 kg - 200 kg (110 lbs - 440 lbs)

Answer: C