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Course #98410 - $15-
| A) | Contact the transplant surgeon to review the patient's medical history before calling the OPO. | ||
| B) | Defer the donation discussion until the family brings up the topic independently. | ||
| C) | Refer the patient to the OPO and allow the OPO medical director to determine medical suitability. | ||
| D) | Rule the patient ineligible for donation based on the cancer history and document accordingly. |
A common misconception among both the public and healthcare providers is that significant medical history automatically disqualifies someone from donation. In reality, very few absolute contraindications to donation exist. Active, untreated sepsis involving a specific organ, active metastatic cancer (with some exceptions), and certain transmissible infections such as untreated Ebola or rabies represent examples of true contraindications. For all other potential donors, including those with cancer history, diabetes, hypertension, hepatitis, or advanced age, the OPO's medical director makes the final determination on a case-by-case basis [7]. Clinicians should never independently rule out a patient as a potential donor; that determination belongs exclusively to the OPO.
| A) | Brain death declaration is required as a prerequisite before any tissue recovery can occur. | ||
| B) | Registration in the state donor registry is required before tissue donation authorization. | ||
| C) | Solid organ donors are the only patients from whom tissue donation can be pursued. | ||
| D) | Tissue donation can occur up to 12 to 24 hours after cardiac death, expanding the potential donor pool. |
Tissue donation can occur following both cardiac death and brain death, and it can be pursued even in cases where organs are not being donated. Importantly, tissue donation can occur up to 12 to 24 hours after cardiac death, making it possible even when the patient was not identified as a potential organ donor in time. This broader window significantly expands the pool of potential tissue donors [10].
| A) | Cardiac death following withdrawal of life-sustaining treatment precedes organ procurement. | ||
| B) | Declaration of brain death by a physician independent of the transplant team precedes organ procurement. | ||
| C) | Organ procurement begins while the patient is maintained on mechanical ventilatory support throughout. | ||
| D) | Simultaneous consent for donation and withdrawal of treatment must be obtained before any procurement. |
This pathway applies to patients who do not meet brain death criteria but have a non-survivable injury or illness, and for whom a decision has been made to withdraw life-sustaining treatment (WLST). Following WLST, organ procurement occurs after the patient experiences cardiac death, typically within 60 to 120 minutes. DCD procurement has expanded significantly over the past decade and now accounts for a substantial proportion of donor cases nationally [1].
| A) | A documented observation period of at least 48 hours following the neurological injury | ||
| B) | Confirmation of bilateral fixed and dilated pupils on bedside assessment | ||
| C) | Documentation of an isoelectric pattern on electroencephalography | ||
| D) | Exclusion of CNS-depressant drugs and absence of pharmacologic paralysis |
The clinical determination of BD/DNC requires [15,16,17]:
An established etiology sufficient to cause irreversible neurological injury
An observation period of 24 hours in patients 2 years of age or older after hypoxic ischemic brain injury
In adults, exclusion of confounders:
Core temperature >36°C
Systolic blood pressure >100 mm Hg
Mean arterial pressure ≥75 mm Hg (Only the mean arterial pressure goal is applicable on venoarterial extracorporeal membrane oxygenation)
Absence of CNS-depressant drugs/exclude pharmacologic paralysis
Absence of metabolic derangements that could mimic brain death
Neurological examination demonstrating absent brainstem reflexes: No pupillary response to light, absent corneal reflexes, absent oculocephalic reflexes, absent oculovestibular responses, absent gag and cough reflexes
Neuroimaging: Consistent with the mechanism and severity of brain injury
Apnea testing: Absence of spontaneous respiratory effort at a PaCO2 ≥60 mm Hg (20 mm Hg above baseline) after at least one test for adults after neurological exam and two tests for pediatric patients (one after each neurological exam)
| A) | A clinical team member prefers additional objective evidence to support the bedside examination | ||
| B) | Clinical examination or apnea testing cannot be completed due to the patient's medical condition | ||
| C) | Family members request independent confirmation before accepting the brain death diagnosis | ||
| D) | Institutional policy mandates two physician declarations for the brain death determination |
Ancillary testing (EEG, cerebral angiography, nuclear perfusion scan, transcranial Doppler ultrasound) may be used when clinical examination/apnea testing cannot be completed or when there is an inability to correct metabolic derangements adequately, but the neurologic examination(s)/apnea test(s) are consistent with BD/DNC [17]. The patient's family should be allowed to be present during the neurologic examination and apnea test; however, they should be informed about the potential for spinal reflexes (e.g., Lazarus sign) and the fact that these movements do not indicate brain function.
| A) | Separating the notification of brain death from the subsequent conversation about donation | ||
| B) | Structuring communications so the OPO coordinator leads all family meetings independently | ||
| C) | Waiting until the family independently raises the topic of donation before any discussion | ||
| D) | Withholding clinical information until the family support coordinator is fully briefed |
Research and best practice consistently support the principle of decoupling (i.e., separating the notification of death or the discussion of withdrawal of life support from the request for donation). When families receive both conversations simultaneously, authorization rates decline and family distress increases [20,21].
The practical application of decoupling means a physician and/or nurse should first meet with the family to explain the patient's neurological status, the meaning of brain death, and what it means for the patient's prognosis, before any mention of donation. Only after the family has had adequate time to process this information should the OPO family support coordinator introduce the topic of donation. In many cases, this means two separate meetings, often with a short interval in between.
| A) | Engage a professional medical interpreter for all donation-related discussions. | ||
| B) | Involve a bilingual family member who can serve as an interpreter and provide emotional support. | ||
| C) | Provide translated written materials and allow the family adequate time for independent review. | ||
| D) | Simplify the discussion by limiting it to yes-or-no questions the family can respond to directly. |
Effective culturally sensitive care includes:
Asking, not assuming: Directly inquire about any cultural or religious considerations the family would like respected.
Involving spiritual care: Chaplains and spiritual care specialists can be invaluable mediators between clinical teams and families navigating faith-based concerns.
Using trained interpreters: For families with limited English proficiency, professional medical interpreters (not family members) should be used for all donation-related conversations.
| A) | Both values are elevated above their respective target ranges. | ||
| B) | Both values fall below their respective target ranges. | ||
| C) | The CVP is within the target range, but the MAP is below the target range. | ||
| D) | The MAP is within the target range, but the CVP is below the target range. |
STANDARDIZED DONOR MANAGEMENT GOALS
| Parameter | Target Goal |
|---|---|
| Mean arterial pressure (MAP) | 60–110 mm Hg |
| Central venous pressure (CVP) | 4–12 mm Hg |
| Ejection fraction | ≥50% |
| PaO2/FiO2 (PF ratio) | ≥300 on PEEP 5 |
| Sodium | 135–155 mEq/L |
| Blood glucose | ≤180 mg/dL |
| Urine output | ≥0.5 cc/kg/hr |
| Vasopressors | ≤1 agent, low-dose preferred |
| Arterial blood gas | pH 7.3–7.5 |
| A) | It eliminates the need for hormonal replacement therapy in hemodynamically unstable donors. | ||
| B) | It is the most potent vasopressor available for maintaining systolic blood pressure targets. | ||
| C) | It simultaneously addresses diabetes insipidus, provides vasomotor support, and reduces catecholamine requirements. | ||
| D) | It targets renal vasomotor pathways preferentially, without affecting cardiac output or vascular tone. |
Aggressive fluid resuscitation is often required to address diabetes insipidus-driven volume depletion and post-herniation hypotension. Isotonic crystalloids are generally preferred. Vasopressin (antidiuretic hormone) is a cornerstone of donor management. It simultaneously treats diabetes insipidus, supports hemodynamics, and reduces the need for high-dose catecholamine vasopressors. Norepinephrine (≤0.2 mcg/kg/min) is the preferred catecholamine when vasopressin alone is insufficient; alternately, neosynephrine (≤1 mcg/kg/min) may be used. High-dose dopamine (>10 mcg/kg/min) is associated with worse heart and kidney outcomes; a dosage of ≤10 mcg/kg/min should be used [28,29].
| A) | Dexamethasone administered as an intravenous bolus | ||
| B) | Hydrocortisone administered as a continuous intravenous infusion | ||
| C) | Insulin administered as a continuous intravenous infusion | ||
| D) | Triiodothyronine administered as a continuous intravenous infusion |
The Papworth protocol and subsequent research support the use of hormone replacement therapy in hemodynamically unstable donors. The regimen typically includes:
Methylprednisolone: 15 mg/kg IV bolus (addresses adrenal insufficiency, reduces inflammatory cytokine release)
Triiodothyronine (T3) or levothyroxine (T4): IV infusion to restore myocardial contractility
Vasopressin: 0.5–2.4 units/hour IV
Insulin: Continuous infusion targeting glucose 70–150 mg/dL