An 8.5% weight gain and a neighbour's salt substitute
Mrs. Okafor, 58, is six weeks into in-center hemodialysis. Dry weight is 68 kg; she arrives today at 73.8 kg. She has missed one treatment and speaks English as a second language; her adult daughter comes to some sessions and often answers for her. She tells you, 'I don't drink water - only soup, and ice when I'm thirsty.' Her sodium is 134 mEq/L and she is hypertensive. She also shows you a salt substitute a neighbour gave her because 'the food at dialysis is bland,' and a list of her medications, which includes an ACE inhibitor. She says she feels fine and doesn't understand the fuss.
1. Given today's numbers, what is your first education priority for this session, and what would you deliberately avoid doing?
Read the worked answer
First, quantify so the teaching has a target: 73.8 − 68 = 5.8 kg gained, which is 8.5% of dry weight - well above the 5% threshold and a real risk for a symptomatic or shortened run.
Priority for this session: identify where the sodium and fluid are coming from and agree on one concrete, measurable change before her next treatment. Example: 'Substitute the canned soup with a lower-sodium version twice this week.' One change she can do is worth more than five she cannot.
Deliberately avoid:
- Reciting a millilitre fluid restriction before you know her actual intake.
- Covering fluid, potassium, phosphorus and protein in one sitting.
- A tone that implies she has been lying or careless - she will under-report next time, and the soup and ice are honest answers.
- Handing her an English-only handout she cannot read and calling that teaching.
- Skipping the teach-back, which is the only way to know what she actually understood.
2. Take her statement 'I don't drink water' seriously. What does it tell you, and how would you probe it?
Read the worked answer
It tells you she has defined 'fluid' as water and eliminated the wrong category from her mental list. Fluid she does not count as fluid is still fluid, and thirst driven by sodium is the real engine.
Probe with a 24-hour recall, not leading questions:
- Soup, broth, ice, jelly, tea, coffee, fruit, ice cream - ice counts as fluid once it melts, and soup is fluid plus a large sodium load.
- Sodium drivers of thirst: canned and packet soup, bouillon, seasoning cubes, cured meat, bread, pickles, takeaway food.
- When is she thirstiest? Evening? After a salty meal? That pattern is a teaching hook.
Then teach back: 'Tell me in your own words which two things you'll switch before Wednesday, and how much you'll have of them.' Correct misunderstandings on the spot and re-check until her words match your intent.
Also flag: sodium of 134 with a 5.8 kg gain means excessive intake is diluted against something - the provider should know, because it changes whether the 'eat more salt because your sodium is low' advice applies (it does not).
3. How do you handle the salt substitute, the language barrier, and the daughter's habit of answering for her?
Read the worked answer
Salt substitute first - it is the safety issue. Most salt substitutes are potassium chloride. In a dialysis patient on an ACE inhibitor, a potassium load can cause hyperkalemia and an arrhythmia. Tell her plainly to stop it now, ask her not to accept food products from neighbours without asking the team, and report it to the RN and provider so potassium can be checked. She was not being careless; she was solving a problem you had not solved for her, so also address the 'bland food' complaint with herbs, lemon, pepper, garlic - not salt, not substitute.
Language and family: request a qualified interpreter for anything safety-critical. The daughter can stay and support, but she is not the interpreter of record and she must not answer for her mother - direct questions to Mrs. Okafor, use short sentences, one idea at a time, and confirm with teach-back.
The missed treatment: ask why before lecturing. Transport, work, cost, or a family obligation are all fixable; a lecture is not. Document the reason and route it to the social worker, and make sure she leaves knowing the next date and time.