Please select the eligibility criteria that correspond to the clinical trial below.
Title: A Randomized Clinical Trial of Restrictive vs. Traditional Blood Transfusion Practices in Burn Patients
Brief Summary: The purpose of this study is to find out if burn injured patients do better receiving fewer blood transfusions than what is traditionally given. We traditionally provide blood transfusions to maintain a hemoglobin level, which is an indicator of the level of red blood cells that carry oxygen in your body, to above 10 g/dl (g/dl stands for grams per deciliter and is the standard measurement used to indicate the level of red blood cells in your blood). However, a preliminary study indicated that maintaining the hemoglobin level to above 7-8 g/dl with less blood transfusion, as compared to a hemoglobin level of 10 g/dl and above, would reduce the occurrence of blood infection, duration on the respirator and length of hospital stay, yet would achieve similar survival in both groups.


Options:
A: Inclusion Criteria:

All of the following must be present:

* Acute myocardial infarction with presentation within 72 hours of randomization (acute myocardial infarction is defined as ischemic-type chest discomfort lasting at least 30 minutes associated with creatinine kinase MB (CKMB) or troponin \>upper limit of normal \[ULN\])
* Admission to CCU
* Hematocrit .30 or less
* Written, informed consent

Exclusion Criteria:

* Inability or unwillingness to receive red cell transfusions
* Active bleeding (overt blood loss accompanied by a decrease in hematocrit of at least 5% in the preceding 12 hours)
* Receipt of red cell transfusion within 7 days of randomization
* Prior severe transfusion reaction
* Pregnancy
* Imminent death
* Decision to provide limited care
* Age \<21
* Participation in another clinical trial in which blood transfusion is a requirement or a component of a primary or secondary endpoint
* Previous participation in the CRIT Pilot
B: Inclusion Criteria:

* Documented cancer
* Planned treatment with chemotherapy
* Age older than 18 years
* Informed consent

Exclusion Criteria:

* Heart failure (NYHA 3 and 4)
* Prior serious complications to blood transfusion
* Medical conditions that require special considerations for blood transfusion
* Treatment with erythropoiesis-stimulating agents
C: Inclusion Criteria:

* Patients for planned open repair of the abdominal aorta or infrainguinal arterial bypass
* Hemoglobin \< 6 mmol/L

Exclusion Criteria:

* Documented wish against transfusion
* Previous serious adverse reaction with blood products
* Unable to understand the benefits and risks of testing
* Previous participation in trial
D: Inclusion Criteria:

* \>20% TBSA burn with anticipated operation need on admission as determined by attending physician
* age \>18 years
* Admission within 96 hours of injury

Exclusion Criteria:

* \<18 years of age
* pregnancy
* inability or unwillingness to receive blood products
* history of chronic anemia (hemoglobin \<9.0 g/dL one month prior to enrollment)
* preexisting need for hemodialysis
* brain death or imminent brain death
* non-survivable burn as determined by the attending burn surgeon
* angina or acute myocardial infarction
* preexisting hematologic disease
* Length of hospital stay anticipated to be \< 2 weeks
* Transfusion administered at outside hospital before admit

Answer: D