7.3 Scope of Practice, Ethics & Federal Regulations

Scope of Practice, Ethics & Federal Regulations

As a Certified Hemodialysis Technologist (CHT), operating safely and legally within the complex healthcare environment requires a deep understanding of your professional boundaries, ethical obligations, and federal privacy regulations. The hemodialysis floor is a fast-paced, high-stakes clinical setting where life-saving interventions occur daily. Because technicians perform invasive procedures, such as cannulating vascular accesses and monitoring extracorporeal circuits, strict adherence to the defined scope of practice is paramount for patient safety and professional liability.

The CHT Scope of Practice vs. The Registered Nurse

The scope of practice defines the procedures, actions, and processes that a healthcare practitioner is permitted to undertake in keeping with the terms of their professional license or certification. For a CHT, the scope of practice is distinctly different from that of a Registered Nurse (RN).

A CHT operates strictly under the delegation and direct supervision of an RN. While the CHT is highly trained in the technical aspects of dialysis delivery—including machine setup, alarm troubleshooting, venipuncture of fistulas and grafts, and monitoring vital signs—they do not possess a nursing license and therefore cannot perform nursing assessments or make independent medical judgments.

Key boundaries that a CHT must never cross include:

• Altering Prescriptions: A CHT cannot independently change a patient's dialysis prescription, including modifying the estimated dry weight (EDW), altering the dialysate composition, or changing the prescribed treatment time, even if the patient requests it. Any requested changes must be communicated to the RN or nephrologist.
• Medication Administration: While regulations vary slightly by state, CHTs are generally prohibited from administering intravenous medications (like antibiotics, iron, or Vitamin D), with the notable exceptions of normal saline and, in some jurisdictions, standard doses of heparin or local anesthetics like lidocaine, provided they are explicitly delegated by the RN.
• Comprehensive Assessment: A CHT gathers objective data (e.g., blood pressure, weight, presence of edema) but cannot perform a comprehensive clinical assessment. If a patient reports chest pain, shortness of breath, or presents with an abnormal heart rhythm, the CHT must immediately notify the RN to assess the patient.
• Central Venous Catheters (CVCs): In many states and facility policies, CHTs are prohibited from accessing, dressing, or initiating treatment via a central venous catheter due to the high risk of fatal air embolism and systemic infection. This is frequently reserved for the RN.

Working outside your scope of practice is not just a violation of facility policy; it is the illegal practice of nursing, which can result in the immediate loss of certification, termination of employment, and civil or criminal prosecution.

HIPAA and Patient Confidentiality

The Health Insurance Portability and Accountability Act (HIPAA) of 1996 is a federal law that established national standards to protect sensitive patient health information from being disclosed without the patient's consent or knowledge. In the dialysis setting, where patients are treated in a communal, open-floor environment, maintaining privacy requires constant vigilance.

Protected Health Information (PHI) includes any information that can be used to identify a patient, such as names, birth dates, social security numbers, medical diagnoses, treatment parameters, and laboratory results. As a CHT, you have a legal and ethical duty to safeguard this information.

Practical applications of HIPAA on the dialysis floor include:

• Conversations: Avoiding loud discussions regarding a patient's lab results (e.g., HIV status, hepatitis status, or drug screens) on the open treatment floor. Sensitive conversations should occur in a private room.
• Electronic Records: Never sharing your computer passwords, always logging out of the electronic medical record (EMR) system when stepping away from the workstation, and angling monitors away from public view.
• Social Media: Never posting pictures of patients, their vascular accesses, or the facility floor on social media platforms, even if the patient's name is not mentioned. A seemingly innocent post can easily violate HIPAA and destroy a career.
• External Conversations: Never discussing a patient's medical condition with individuals outside the care team—including the patient's friends or unauthorized family members—without explicit, documented consent from the patient.

Violations of HIPAA carry severe consequences, ranging from termination of employment to massive federal fines and federal prison sentences for intentional, malicious breaches.

Advance Directives

Because ESRD is a chronic, life-limiting illness, patients frequently experience severe medical emergencies. Advance directives are legal documents that allow patients to articulate their preferences for medical care if they become incapacitated and unable to speak for themselves.

The two most common types of advance directives are:

1. Living Will: This document specifies exactly what types of medical treatments the patient would or would not want in end-of-life situations. This might include preferences regarding cardiopulmonary resuscitation (CPR), mechanical ventilation, or artificial nutrition.
2. Durable Power of Attorney for Healthcare (Healthcare Proxy): This document designates a specific person (the agent or proxy) to make medical decisions on the patient's behalf if the patient loses the capacity to do so.

As a CHT, you must know where these documents are located in the patient's chart. If a patient expresses a desire to stop dialysis or change their resuscitation status, you must listen respectfully, avoid projecting your personal beliefs onto the patient, and immediately inform the social worker and the charge nurse so the medical team can address the patient's wishes properly.

The BONENT Code of Ethics

Professional certification brings with it an obligation to uphold ethical standards. The Board of Nephrology Examiners Nursing and Technology (BONENT) provides a Code of Ethics that all certified technologists must follow.

Key principles of the BONENT Code of Ethics include:

• Non-Discrimination: Providing competent, high-quality care to all patients regardless of race, religion, gender, sexual orientation, or socioeconomic status.
• Respect for Dignity: Treating every patient with respect, compassion, and dignity, acknowledging their vulnerability.
• Professional Competence: Committing to lifelong learning, maintaining active certification through continuing education, and recognizing personal limitations by seeking assistance when a situation exceeds one's expertise.
• Integrity: Acting with honesty in all professional matters, reporting errors truthfully, and prioritizing patient safety over personal convenience.

Adhering to these ethical guidelines ensures that the CHT remains a trusted, reliable, and highly respected member of the multidisciplinary nephrology team.