Please select the eligibility criteria that correspond to the clinical trial below.
Title: Do Nasogastric Tubes After Cardiac Surgery Reduce Nausea and Vomiting. A Prospective Randomized Clinical Trial.
Brief Summary: Gastric emptying is delayed after cardiac surgery, but the efficacy of the nasogastric (NG) tube in preventing distension and reducing vomiting is unclear. Nasogastric (NG) tubes are routinely used in patients undergoing surgery. They are presumed to reduce postoperative nausea and vomiting (PONV) and to lessen the risk of aspiration by reducing residual gastric volumes; however, their insertion and use is not however without potentially serious complications. Existing literature does not address their efficacy in reducing PONV after cardiac surgery. However, current evidence suggests that up to 50% of patients in this group suffer significant nausea and vomiting. The objective of this study is to determine whether NG tubes should continue to be inserted routinely during cardiac surgery to reduce PONV.


Options:
A: Inclusion Criteria:

* Primary hip fracture
* capable of informed consent
* independently dwelling
* able to ambulate independent of human assistance
* no active heart condition defined as no AMI within 3 months, no unstable angina or present incompensation/pulmonary oedema
* no regular transfusion demand or terminal disease.

Exclusion Criteria:

* Multiple fractures
* postop. immobilization due to to surgical reasons
* patient refusal to participate in relevant rehabilitation
* reoperation within 4. postoperative day.
B: Inclusion Criteria:

* Age equal to or greater than 18 years
* Moderate or severe traumatic brain injury, defined as Glasgow coma scale less than or equal to 12 at hospital admission
* Hemoglobin lower than 9.0 g/dL within 7 days from hospital admission

Exclusion Criteria:

* Glasgow coma scale equal to 3 with dilated pupils bilaterally
* Previous neurological sequelae
* Pregnant women
* Jehovah's Witnesses
* Hemorrhagic shock at randomization
* Moribund patients
* Unable to provide consent
C: Inclusion Criteria:

1. ≥18 and ≤65 years of age
2. Planned cardiac surgery using cardiopulmonary bypass
3. Informed consent obtained
4. Preoperative European System for Cardiac Operative Risk Evaluation (EuroSCORE I) of 6 or more

Exclusion Criteria:

1. Patients who refuse participation
2. Patients who are unable to receive or who refuse blood products
3. Patients who are involved in a preoperative autologous pre-donation program
4. Patients who are having a heart transplant or having surgery solely for an insertion of a ventricular assist device
5. Pregnancy or lactation (a negative pregnancy test must be obtained prior to randomization for women of childbearing potential)
D: Inclusion Criteria:

* undergoing coronary artery bypass graft and/or valvular surgery,
* age 18-80 year olds
* signed informed consent
* elective or urgent surgery

Exclusion Criteria:

* past history of oesophageal surgery, oesophageal varices or stricture,
* patients who have received antiemetic medication in the 24 hours before surgery
* emergency surgery
* patients that require re-sternotomy, or are not extubated 24 hours after admission to the intensive care unit, will be excluded from the study.

Answer: D