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HEMODIALYSISWhy fluid matters betweendialysis sessions1When the kidneys can't remove water, extra fluid betweensessions stays in the body: swelling, breathlessness,high blood pressure; removing it too fast on dialysiscauses cramps and low blood pressure.2Studies link larger interdialytic weight gain to highercardiovascular mortality. A common unit target is no morethan 4% of dry weight (about 2–2.5 kg); your own target isset by your dialysis team.3Thirst is mainly driven by salt: the more sodium you eat,the thirstier you get. Cutting salt works better — andhurts less — than forcing yourself not to drink.4"Fluid" is not just water: soup, congee, ice, jelly,watermelon and drinks all count; fruit and vegetablescontain water too.5Thirst tips: suck a small ice cube or lemon slice, use asmall cup, chew sugar-free gum, and pour the day'sallowance into one fixed bottle.Your pre-dialysis weight is the best feedback. Ask the nurse: "What is mydry weight, and how much did I gain this time?"BBeyond CKDbeyondckd.com/en/cards/fluid-between-dialysisSources: KDOQI Clinical Practice Guideline for Hemodialysis Adequacy: 2015 Update ·…Compiled from public clinical guidelines · General education, not individual medical advice
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Hemodialysis

Why fluid matters between dialysis sessions

The real cause of thirst isn't water — it's salt. 5 keys to fluid control on dialysis.

  1. 1When the kidneys can't remove water, extra fluid between sessions stays in the body: swelling, breathlessness, high blood pressure; removing it too fast on dialysis causes cramps and low blood pressure.
  2. 2Studies link larger interdialytic weight gain to higher cardiovascular mortality. A common unit target is no more than 4% of dry weight (about 2–2.5 kg); your own target is set by your dialysis team.
  3. 3Thirst is mainly driven by salt: the more sodium you eat, the thirstier you get. Cutting salt works better — and hurts less — than forcing yourself not to drink.
  4. 4"Fluid" is not just water: soup, congee, ice, jelly, watermelon and drinks all count; fruit and vegetables contain water too.
  5. 5Thirst tips: suck a small ice cube or lemon slice, use a small cup, chew sugar-free gum, and pour the day's allowance into one fixed bottle.

Your pre-dialysis weight is the best feedback. Ask the nurse: "What is my dry weight, and how much did I gain this time?"

Caption (ready to paste)

The real cause of thirst isn't water — it's salt. 5 keys to fluid control on dialysis.

1. When the kidneys can't remove water, extra fluid between sessions stays in the body: swelling, breathlessness, high blood pressure; removing it too fast on dialysis causes cramps and low blood pressure.
2. Studies link larger interdialytic weight gain to higher cardiovascular mortality. A common unit target is no more than 4% of dry weight (about 2–2.5 kg); your own target is set by your dialysis team.
3. Thirst is mainly driven by salt: the more sodium you eat, the thirstier you get. Cutting salt works better — and hurts less — than forcing yourself not to drink.
4. "Fluid" is not just water: soup, congee, ice, jelly, watermelon and drinks all count; fruit and vegetables contain water too.
5. Thirst tips: suck a small ice cube or lemon slice, use a small cup, chew sugar-free gum, and pour the day's allowance into one fixed bottle.

Your pre-dialysis weight is the best feedback. Ask the nurse: "What is my dry weight, and how much did I gain this time?"

Sources: KDOQI Clinical Practice Guideline for Hemodialysis Adequacy: 2015 Update — AJKD 2015;66:884–930; Kalantar-Zadeh K et al. Fluid retention is associated with cardiovascular mortality in hemodialysis — Circulation 2009;119:671–679; NKF — Fluid Overload in a Dialysis Patient
Verified: 2026-10-16

Cards and scripts are general health education compiled from public clinical guidelines. They are not individual medical advice and do not replace assessment by your doctor, pharmacist or dietitian. Please keep the sources and this notice when sharing; this page holds the latest version.
https://beyondckd.com/en/cards/fluid-between-dialysis
60-second short-video script

Shot list and voice-over. Vertical 9:16; put captions in the lower third. Every line maps to the sources on the left.

secScreenVoice-over
0–5Dialysis-unit scaleWeigh-in before dialysis — up three kilos again. Why does fluid need controlling?
5–16Swelling, breathlessness, high BP readingWhen the kidneys can't remove water, everything you drink between sessions stays: swelling, breathlessness, high blood pressure. Take it off too fast on dialysis and you get cramps and a blood-pressure crash.
16–27Line: more weight gain → higher risk; "<4% of dry weight"Studies show the more weight you gain between sessions, the higher the cardiovascular risk. A common unit target is under four percent of dry weight, about two to two and a half kilos. Ask your team for yours.
27–37Salt shaker → thirst iconThe real cause of thirst is salt. More sodium, more thirst. Cutting salt works better than forcing yourself not to drink — and hurts less.
37–47Soup, congee, watermelon, ice, drinks in a rowFluid isn't just water. Soup, congee, ice, jelly, watermelon, drinks — all of it counts.
47–55Ice cube, lemon slice, small cup, fixed bottleThirst tips: a small ice cube, a lemon slice, a small cup, sugar-free gum, and the day's allowance in one fixed bottle.
55–60Site logo + URL + QREvidence-based knowledge for life on dialysis, at Beyond CKD.

Sources (every point on the card maps to one)

Verified: 2026-10-16