BONENT CHN case studies
BONENT CHN · Put your knowledge to work in context.
The Certified Hemodialysis Nurse (CHN) credential is issued by the Board of Nephrology Examiners Nursing and Technology, Inc. (BONENT), an organization that marked 50 years of dedication to dialysis in 2024. BONENT's certification menu groups its nephrology credentials by role: the CHN sits with the Certified Peritoneal Dialysis Nurse (CPDN) among the nurse certifications, alongside technician and technical credentials such as the CHT, CHBT and CHWS. The CHN is intended for nurses working in hemodialysis who want external, role-specific validation of their practice knowledge beyond licensure. The BONENT CHN case studies are 5 cases and about 3,531 words.
1Hypotension at Hour Two: Rate, Food, or Dry Weight?
R, 68, has been on in-center hemodialysis for 4 years. His dry weight is 70.0 kg; today's pre-treatment weight is 73.8 kg.
851 words, about 4 min2Missed Sessions, Peaked T Waves, and a Chair in 45 Minutes
A 54-year-old woman on thrice-weekly hemodialysis missed two consecutive sessions after a family emergency. She presents to the emergency department with generalized weakness, palpitations, and nausea.
667 words, about 3 min3Rising TMP and a Dark, Streaked Dialyzer
Midway through a 4-hour treatment the machine alarms. Blood flow is 400 mL/min, dialysate flow 500 mL/min, and the UF goal is 2.8 L.
705 words, about 4 min4Three Patients, One Carbon Tank, and a Chlorine Reading of 0.35
At 09:20, three of six patients in the unit develop nausea, chest tightness, and a metallic taste; one reports back pain and passes dark urine. All are on stations 1–3, which share a loop fed by the same carbon tanks; stations 4–6 are on a separate loop.
649 words, about 3 min5A New HBsAg-Positive Patient, a Shared Station, and a Needlestick
A 61-year-old man who has dialyzed in your 12-station unit for 8 months is found to be HBsAg positive on routine monthly screening. He is asymptomatic, and his ALT is mildly elevated.
659 words, about 3 min