Intra-treatment Monitoring and Vital Signs

Key Takeaways

  • Trend vital signs against the pre-treatment baseline and the ordered prescription.
  • Observe the patient, access, bloodlines, pressures, alarms, and ultrafiltration throughout treatment.
  • Report abnormal findings promptly instead of waiting for the next routine check.
  • Documentation should reflect what was assessed, what changed, who was notified, and the response.
Last updated: May 2026

Monitoring During Treatment

Intra-treatment monitoring is active surveillance, not just recording numbers. Compare each vital sign, machine reading, and patient comment with the pre-treatment baseline, the dialysis prescription, and recent trends. A normal-looking single value can still matter if it is moving quickly in the wrong direction.

What to Watch

AreaExamplesWhy It Matters
PatientBlood pressure, pulse, respirations, pain, nausea, cramps, dizziness, mental statusEarly signs may appear before a severe event.
AccessNeedle position, bleeding, swelling, infiltration, securementAccess problems can cause blood loss or poor treatment.
CircuitArterial and venous pressures, air detector, clamps, dialyzer appearancePressure changes may signal needle, line, or clotting issues.
PrescriptionBlood flow rate, dialysate settings, UF goal, UF rate, treatment timeThe machine should match the ordered treatment.

Exam-Safe Monitoring Habits

  • Look at the patient before trusting the machine display.
  • Recheck unexpected readings with proper technique.
  • Keep bloodlines visible and connections secure.
  • Ask focused questions when the patient reports feeling different.
  • Notify the RN or qualified staff for abnormal findings per protocol.

Documentation should be timely, factual, and complete. Record vital signs, machine parameters, symptoms, interventions done within role, staff notified, and patient response. Do not chart an assessment that was not performed, and do not delay reporting because a value has been entered in the record.

Test Your Knowledge

During routine monitoring, a patient's blood pressure drops from 148/82 pre-treatment to 104/60, and the patient says they feel lightheaded. What is the best first technician action?

A
B
C
D
Test Your Knowledge

Which finding during dialysis most directly requires access and circuit assessment?

A
B
C
D
Test Your Knowledge

Which documentation entry best supports safe treatment monitoring?

A
B
C
D