The things you look up ten times a shift, all in one place — with the part most references leave out: what to do about it, and when to call. Free to download, and every card tells you where the number came from.
NurseReflex is a free reference app for nurses and nursing students. It holds the 41 lab values you actually check, each one with its normal range, its critical values, what causes a high or a low, what to do about it and when to call the provider. Alongside them: 66 med cards, four drip and dose calculators, ABG interpretation, six electrolytes, 12 labelled body maps and 10 nursing skills. It needs no account and no signal, shows no ads, and every card names the published reference it came from.
Not just the range. What causes a high or a low, what you do about it, and when to call the provider — the part every other reference leaves you to guess.
The drugs you actually hang and pass. What to watch, what to teach, what goes wrong — on one screen, with the high-alert ones flagged.
mL/hr, gtt/min when there's no pump, mcg/kg/min, desired-over-have. Every answer shows the formula it used, so the math stays yours.
Heart, nephron, brain lobes, skin layers. Colour-coded, every structure labelled, and a line on why it matters at the bedside.
Basement unit, elevator, rural floor: it's all already on your phone. Opens in under two seconds. No login, no spinner, no "update to continue".
Every card names the book it came from, and reminds you to check it against your own facility's policy. "I looked it up" should hold up.
The numbers you check most, on the screen you already glance at forty times a shift. No unlocking, no searching. Pick a pack and the app draws it at your phone's exact screen size, so nothing is cut off. Pro lets you build a pack from any cards you like.
Download on the App StoreYes, and the free tier is meant to be useful on a real shift, not a teaser: a starter set of lab values, med cards, skills and body maps, all four calculators, the whole ABG walkthrough, favorites, and your own cards. One payment opens the rest of the library. No ads, and we never ask for your email. Android isn't out yet.
Yes — 100% offline. Every lab value, med card and calculator is bundled with the app, so it opens in under two seconds in a basement unit, a stairwell, an elevator or a rural facility. No content screen ever makes a network call, and there is no spinner to wait through.
Every card cites the published nursing reference it was built from — Pagana's Mosby's Manual of Diagnostic and Laboratory Tests, Lehne's Pharmacology, Ignatavicius's Medical-Surgical Nursing, the ISMP high-alert lists and others, with the full list in Settings. Every card also reminds you to verify against your facility's policy, because reference ranges genuinely vary between labs and institutions. It is an educational reference, not medical advice.
Yes — that is the Badge Wallpaper feature. Pick a pack (core labs, critical electrolytes, ABG in five steps, drip math, high-alert meds or adult vitals) and the app renders it at your phone's exact screen resolution. Android sets the lock screen in one tap; iPhone saves it to Photos and the app walks you through the four taps to set it. Pro users build their own from any card. Wallpapers are made in the app, not downloaded from this site — that is how they fit your screen exactly.
Yes. Pro unlocks with a single purchase that follows your store account rather than your device, so a new phone only needs Restore Purchases. Pro also syncs your favorites, your own cards and your home layout across your devices, through your own iCloud. The current price is on the card above, and next to the button on the App Store.
No account, no login, no email. There is no analytics SDK and no network call from any content screen. Your favorites and My Cards live on your phone; with Pro they can also sync across your own devices through your own iCloud or Google Drive account, which we have no access to. Nothing is sent to us except the store's own anonymous record of a Pro purchase. Full detail in the privacy policy.
Med-surg, ICU, ER, LTC and home-health nurses, students in clinicals, and new grads who are tired of feeling like they should already know this. If you look numbers up on shift, it's for you.
Nothing here is paywalled. This site is the version for a desk and a browser tab. The app is the one you carry to work: instant, no signal needed, with the calculators, your favorites and your own cards.
Free on the App Store. No account, no ads, no signal needed. Pro is a one-time purchase.
Download on the App Store