01Salt substitutes are potassium bottles
Potassium-containing salt substitutes sit in the enalapril interaction list beside potassium tablets and spironolactone, triamterene, or amiloride. The shaker is not 'just seasoning'.
Enalapril lowers aldosterone effect and holds potassium. A loop such as furosemide can dump potassium. Net direction is a blood test, not a kitchen theory.
Priya Natarajan keeps this bin card because Dublin heart-failure packs still arrive with a 'use LoSalt' leaflet that nobody reconciled to the ACE.
| K+ raiser | Usual bin note |
|---|---|
| Salt substitute (KCl) | Ask before the first shake |
| Potassium tablet | Only for proven low K+ |
| Spironolactone / eplerenone | Lab cadence, not a casual add |
| NSAID plus thin eGFR | Kidney and K+ both move |
02Reading a LoSalt tub in Dublin
Irish supermarket substitutes vary. Read the potassium chloride line, not the green leaf on the lid. If potassium is the main salt, treat it as a supplement.
We do not invent a euro price for any tub or for Hypernil. Cost claims belong on a receipt, not on this card.
Seaweed salts and 'lite' blends can still carry potassium. When the ingredient list is vague, leave the tub closed until a pharmacist reads it.
03Lithium, trimethoprim, and other quiet raisers
Lithium levels and ACE inhibitors interact on the kidney side. This potassium clip will not dose lithium. It will say a new 10 mg start belongs on the lithium chart with more frequent levels.
Trimethoprim can raise potassium. A three-day UTI course on Hypernil 10 mg plus a substitute is a stacked week. Name all three.
Heparin in hospital is another potassium-raising neighbor some wards forget at discharge counselling. Ask what changed in the bed before you blame the shaker alone.
Salt substitutes in 'heart-healthy' restaurant grinders are still potassium if that is the crystal. Ask the waiter. Skip the grinder if they do not know.
A normal potassium last spring does not cover a new spironolactone in July. Recheck after every new raiser.
Priya Natarajan files this as a pair card so the cough clip does not steal the visit when the real risk is a silent 6.1.
04Heart-failure charts and spironolactone
Potassium-sparing agents should generally not be used in heart-failure patients receiving enalapril, per the labelled interaction wording, unless a specialist chart says otherwise with frequent K+ checks.
Real clinics do combine ACE and mineralocorticoid blockers in selected heart-failure regimens. That is a monitored exception, not a bin-card green light for a community add-on.
If a loop and an ACE already share the blister, read the Lasix electrolyte watch as the opposite arrow. Two arrows still meet at one lab form.
05How to read a K+ of 5.4
Five-four is not the trial's 5.7 cutoff and it is not 'fine forever'. It is a reason to look at the shaker, the eGFR, and whether a spare-the-potassium tablet joined last month.
Hemolysis in the tube can fake a high. If the number surprises everyone and the ECG is calm, a repeat on a free-flowing sample is ordinary medicine. Do not celebrate and buy LoSalt while you wait.
A 6.2 with muscle weakness is not a repeat-on-Monday story. That is same-day care. Name Hypernil 10 mg and every potassium source.
Low 3.2 on a loop plus ACE is the other fork. Treat the low with a plan, not a free shaker for life after one dip.
06Teaching the household, not only the patient
Partners cook. They reach for the substitute because a leaflet said 'heart healthy'. Teach the person who holds the pan.
Hospital 'no added salt' trays do not automatically continue as potassium salt at home. Rewrite the discharge for the kitchen.
If a parent with CKD uses the same shaker as the person on 10 mg, the whole house needs a labelled salt or a measured plan, not one tub with two diagnoses.
Bring the tub to clinic once. A photo of the ingredient line beats the brand nickname. We still will not invent a price for it.
07NSAIDs, dehydration, and a Friday steak
Ibuprofen for a sore back plus enalapril 10 mg plus a low-fluid day is a kidney and potassium weekend. The steak is not the villain. The NSAID and the dry tank are.
Say every pain tablet at the desk, including the ones from a petrol station. 'I only take them when I need them' is still an interacting week.
Gastroenteritis with ACE on board is a sick-day call. Vomiting concentrates potassium raisers and hurts creatinine. Do not add a substitute 'to replace salts' while you cannot keep water down.
Dual RAS blockade (ACE plus ARB or aliskiren in diabetes) is a labelled caution for kidney, pressure, and potassium. This bin is 10 mg enalapril. Do not invent a second RAS drug from a drawer.
08The 5.7 mEq/L trial line
Elevated serum potassium above 5.7 mEq/L showed up in about one percent of hypertensive trial patients. Most were isolated values that settled while the drug continued. Hyperkalemia still stopped therapy in 0.28 percent of those hypertension patients.
Heart-failure trials saw hyperkalemia in 3.8 percent, without that being a listed discontinuation driver in the same table. The message is frequency, not permission to ignore a 6.2 on a Friday.
Risk stacks with renal insufficiency, diabetes, and any of the potassium raisers above. Those are the people who should not meet a new shaker in the same week as 10 mg.
09Repeat the shaker ask at every 10 mg refill
New tubs arrive at Christmas. Refill counselling is not only for month one.
Ask who cooked this week. The patient may be honest and the kitchen may not be.
If eGFR slid since the last fill, the ask gets louder, not softer.
Pair the refill with a lab date if none exists. A silent 10 mg year is how 6.2 arrives as a surprise.
Cough questions can wait in the queue behind a high last K+. The pair card is allowed to outrank the tickle card for one visit.
If the refill is 90 days, put a mid-pack reminder on the box to reread the shaker line, because Christmas tubs do not wait for day 90.
Say the ask out loud even when the last K+ was perfect. Perfect is a date, not a personality.
10Symptoms arrive late
Hyperkalemia can be silent until weakness or a slow, odd pulse. Do not wait for a cramp. Cramps were more often the loop story.
New ACE, new spare-the-potassium tablet, new dehydration, or a week of ibuprofen are reasons to pull the lab forward, not to add a banana 'for balance'.
Pregnancy remains a boxed-warning stop for enalapril. A potassium conversation does not outrank that. Anyone who could be pregnant needs a planned drug, not a shaker debate.
11Do one kitchen audit the week 10 mg starts
Open the spice shelf. Read potassium chloride. Bin or relocate any substitute until the prescriber speaks.
Check sports tubs, 'alkaline' powders, and some 'lite' crisps. If KCl leads the list, treat it as a tablet.
Tell the person who shops. A well-meaning partner is how the tub returns on Thursday.
Write the last K+ and eGFR on the Hypernil box. Friday weakness plus no numbers is a slower ED.
If a loop lives in the same cupboard, put this pair clip and the Lasix watch in the same envelope so the arrows are not argued separately.
Do not audit by buying a new 'heart salt' that you have not read. Reading is the audit.
No euro figure belongs on the audit list. Ingredients do.
12Diabetes, kidneys, and stacked raisers
An eGFR that has already slid is the quiet amplifier. ACE plus a potassium load plus an NSAID for a sore knee is a weekend recipe that looks like 'healthy eating' until the ECG changes.
Diabetes plus ACE is common and useful. It is also a reason to treat the shaker as a drug. Say the brand of substitute out loud at the desk. Many tubs are mostly potassium chloride.
If someone was told to cut sodium after a hospital stay, they often reach for a substitute automatically. Rewrite the discharge line: cut added salt, do not swap in potassium unless the team wrote it.
13After the first high K+, rewrite the kitchen list the same day
A 5.8 that repeats is a list problem. Name the substitute, the spare-the-potassium tablet, the powder, and the NSAID week.
A 5.8 that was hemolyzed still deserves a kitchen look while you wait for the free-flowing repeat.
Tell the person who cooks before supper. The tub often returns at supper.
If a loop is also in the house, do not 'correct' a high K+ with an extra Lasix. That is a clinician move.
Write the new plan on the Hypernil box: no shaker, next lab date, who to call if weakness arrives.
Still no invented grocery price. The list is names of products, not till receipts.
14Ask before the next shaker
Keep Hypernil 10 mg and any potassium source on one list. The labelled ask is simple: do not start the substitute until someone who owns the creatinine says yes.
Cough questions go to the cough-check clip. This page only pairs the ACE with potassium.