Ogya a Wɔde Tow Mortar Reload Explosion ne Roman Candle Backfire¶

Adetɔfo ne nneɛma a wɔde kyerɛ atɛkyɛ a wotumi san de gu wim (atɔfo afahyɛ bɔɔl a ne kɛse yɛ milimita 44 / nsateakwaa 1.75 ne aguadi mu nkyia akutu a ne kɛse yɛ milimita 75 kosi 150 / nsateakwaa 3 kosi 6), keeki a wɔde wim tow pii, ne Romafo kyɛnere a wɔde nsa kura yɛ bɛboro 10,000 a wɔgye wɔn a wɔgye wɔn a wɔde wɔn ho hyɛ mu wɔ Emergency trauma Department afe biara wɔ United States nkutoo (U.S. CPSC data), a nsa ne nsateaa (ɔha biara mu 30 kosi 35), ti/anim/aso (ɔha biara mu 22), ne aniwa (ɔha biara mu 15 kosi 20) na ɛsoa nhyɛso a ɛboro so a ɛpae a ɛpae ne 1,200-kɔ-2,000-Celsius (2,200-kɔ-3,600-degree-Fahrenheit) pyrotechnic nsoromma hyew. Ɛkame ayɛ sɛ ogyaframa a ɛyɛ hu biara a ɛma obi di dɛm anaa owu fi ogyaframa abɔde mu nneɛma anan a wotumi siw ano mu: (1) atɛkyɛ a ɛsan de ogyaframa a ɛwɔ afiri mu a ɛpae anaa atopae a wɔde gu fam a ɛdannan, baabi a obi a ɔyɛ adwuma tow atopae a ɛyɛ tuntum a ɛma so a ɛyɛ foforo gu High-Density Polyethylene (HDPE), fiberglass, anaa krataa a wɔatow no nnansa yi ara so mortar tube a krataa ember biako a ɛhyerɛn wom, a ɛpae akorade no wɔ sikɔne 0.5 akyi bere a nea ɔde di dwuma no anim ne ne nsa wɔ ano no so tẽẽ, (2) "dud" shell walk-up and relight trap, baabi a delay fuse bi wusiw gu a wontumi nhu wɔ tube no mu simma 3 kosi 10 (hangfire) na ɛtow ogya tẽẽ kɔ onipa a ɔrehwɛ toa no ase no ti nhwi mu, (3) Roman kyɛnere krataa plug blow-out (backfire) bere a obi a ɔde di dwuma no kura Roma kyɛnere a ɛwɔ bɔɔl pii wɔ ne nsateaa mu na dɔte ase plug a apaapae tow 1,500 C magnesium/strontium nsoromma kɔ akyi fa wɔn nsateaa ne wɔn nsateaa mu, ne (4) de PVC plastic paipu a ɛyɛ mmerɛw di dwuma sɛ atɛkyɛ afiri a wɔayɛ wɔ fie, a ɛpaapae ma ɛyɛ radiolucent (X-ray-invisible) shrapnel bere a akorade no apae no. Sɛ ogyaframa bi pae wɔ obi nsam, ɛbɔ aniwa, anaasɛ ɛpae n’anim anaa ne moma so a, frɛ wo mpɔtam hɔ nɔma a egye ntɛmpɛ ntɛm ara (911 wɔ United States ne Canada, 112 wɔ Europa Aman Nkabom no nyinaa mu, 999 wɔ United Kingdom, 000 wɔ Australia, 111 wɔ New Zealand) anaa hwɛ yɛn wiase nyinaa nsɛmma nhoma a ɛne nɔma ahorow a egye ntɛmpɛ. Sɛ wopɛ blast, amputation, ne ocular trauma protocols a ɛne no bɔ abira kɛse a, kenkan yɛn akwankyerɛ ahorow a ɛfa ho ogya a wɔde tow atɛkyɛ tube tip-over, shell misfire, ne dud soaking, . ogyaframa a ɛpae, sparkler a ɛhyew, ne ɔtopae a ɛpaapae, . traumatic amputation: nsateaa, nsa, ne nsateaa a wɔkora so, na aniwa a wɔapirapira ne aniwa a ɛbue a wɔde bɔ wɔn ho ban.

Yɛ eyi mprempren¶

1. Sɛ ogyaframa anaa atɛkyɛ bɔ aniwa bi a, MMFA aniwa no nwene, hohoro, anaa MMFA aniwa no so DA: fa dome kyɛm a ɛyɛ den anaa krataa kuruwa a wɔatwa no ase teyp so wɔ orbital nnompe no so ntɛm ara: Ogyaframa a ɛpae a ɛpae no ma open-globe ruptures, corneal lacerations, hyphema (mogya a ɛhyɛ aniwa no anim dan mu ma), ne aniwa mu alkaline tuntum-powder hyew. Sɛ womia gauze so wɔ aniwa a apaapae so a, ɛpiapia aniwa no, iris, ne vitreous gel no fa kuru no mu, na ɛma anifurae a wontumi nsakra. Fa krataa a ɛho tew anaa foam nom kuruwa ase teyp gu nnompe anim a ɛyɛ nnompe ne afono dompe no so sɛnea ɛbɛyɛ a biribiara renka aniwa no, kata aniwa a enpirapira no so na ama ɛnyɛ nea ɛbɛka ne ho, na fa kɔ Dwumadibea a Ɛho Hia Ntɛmntɛm a wɔde aniwa ho oprehyɛn kata so ntɛm ara.
2. Sɛ ɛyɛ atɛkyɛ a, ogyaframa (M-80 / salute), anaasɛ Romafo kyɛnere pae wɔ obi nsa mu, de nhyɛso tẽẽ anaasɛ forearm/upper-arm windlass tourniquet di mogya a ɛde ne nkwa to asiane mu wɔ radial/ulnar arterial so: Blast overpressure inside a closed fist ("hand blast syndrome") bɔ nsateaa no mu, ɛbubu nsateaa no mu, na ɛtwa nsateaa kɛse ne nsateaa a wɔde kyerɛ ade no mu. Fa gauze a wɔde nkyene ayɛ a ɛnyɛ yareɛ hyehyɛ nsateaa a asɛe no brɛoo, fa nhyɛsoɔ a emu yɛ den tẽẽ gu nsateaa/abasa ntini no so, anaa fa CoTCCC windlass tourniquet kyekyere nsateaa/nsateaa no atifi sɛntimita 5 kɔsi 8 (nsateakwaa 2 kɔsi 3) sɛ mogya kɔkɔɔ a ɛhyerɛn a ɛyɛ pulsatile kɔ so ba a.
3. Hwehwɛ nsateaa anaa nsateaa a wɔatwa no nyinaa, fa gauze a ɛnyɛ yare mmoawa a wɔde nkyene ahyɛ mu ma kakra kyekyere ho, kata plastic bag a ɛyɛ nwunu a nsu ntumi nkɔ mu mu, na fa saa kotoku no to nsukyenee ne nsu mpa so (MMFA ntini a wɔatwa no nhyɛ nsukyenee anaa nsukyenee a ayow so tẽẽ DA): Nsa mu oprehyɛn nketewa betumi asan adua nsateaa ne nsateaa a wɔatwa no denneennen mpɛn pii sɛ ntini no wɔ hɔ a wɔkora so denam onwini a ɛnteɛ wɔ digrii Celsius 4 (digrii Fahrenheit 39) so. Sɛ wɔde nsateaa a ɛda hɔ kwa gu nsukyenee so tẽẽ anaasɛ wɔde gu nsu bokiti mu a, ɛma microvascular endothelial cells no yɛ nwini na ɛpopae, na ɛsɛe hokwan biara a ɛwɔ hɔ sɛ wɔbɛsan adua no.
4. Sɛ wim atɛkyɛ anaa keeki antumi antɔ ogya bere a woasɔ fuse no akyi ("Dud" anaa "Misfire") a, MMA nsan nkɔ soro DA nkɔhwɛ mu anaasɛ mmɔ mmɔden sɛ wobɛsan asɔ fuse tiawa no: twɛn anyɛ yiye koraa no simma 20 kosi 30 denneennen wɔ mita 30 (anammɔn 100) gyinabea: Pyrotechnic quickmatch ne visco fuses a wɔde tuntum akata so powder betumi ayɛ wusiw wɔ ne mu (hangfire) a wusiw anaa ogyaframa a wotumi hu biara nni mu simma 5 kosi 15 ansa na abɔ black-powder lift charge no mpofirim. Fa bɛhwɛadefo nyinaa san wɔn akyi anyɛ yiye koraa no simma 20 kosi 30, afei fi nkyɛn bɛn (mmfa nipadua no fã biara nsi afiri no ano da) na fa turo mu hose fa nsuyiri gu atɛkyɛ afiri no mu fi nsa tenten ansa na wode akorade no ahyɛ bokiti a nsu lita 20 (galɔn 5) mu anadwo.
5. Sɛ atɛkyɛ tube a wotumi san de gu mu no atow akorade bi nkyɛe a, anyɛ yiye koraa no twɛn simma 10, wosow krataa biara a asɛe, anaasɛ dan kɔ atɛkyɛ a ɛyɛ nwini a ɛto so abien so ansa na wode akutu foforo ahyɛ mu: Ade a edi kan a ɛde atɛkyɛ a wotumi san de gu mu no anim pae ba ne sɛ wobɛtow akutu a ɛto so abien agu afiri a ɛyɛ hyew a ɛda so ara wɔ smoldering cardboard disk anaa glowing fuse ember a ɛte ase no mu. Ogya a ɛyɛ hyew no hyew kotoku tuntum a wɔde ma nneɛma so a ɛda adi wɔ akorade foforo no ase no bere a ɛtwetwe kɔ toa no mu ara pɛ, na ɛtow akorade no kɔ nea ɔde di dwuma no anim ne ne nsa mu tẽẽ ansa na wɔatumi atwe wɔn nsa akɔ akyi.
6. **Hwɛ agyan a ɛwɔ atɛkyɛ a wɔsan de gu mu biara so (THIS SIDE UP). atopae a wɔde paapae nneɛma mu.

Decision tree: fireworks mortar blast, hand amputation, corneal burn, and dud shell triage¶

flowchart TD
    Start["Fireworks Emergency: Mortar Blast, Roman Candle Backfire, or Misfire"] --> EventType{"1. Egye ntɛmpɛ bɛn na asi?"}

    EventType -->|"1. NSA A WƆBƐTU / NSATEA A WƆTWI"| HandTrauma["HAND BLAST PROTOCOL: 1. Fa gauze a ɛyɛ nwini hyehyɛ nsateaa kuru & fa nhyɛso tẽẽ gu so 2. Sɛ mogya tu wɔ nsateaa mu a -> Fa CoTCCC Windlass Tourniquet gu abasa/basa a ɛwɔ soro so 3. Fa digit ahorow no san -> Fa nkyene gauze a ɛyɛ nwini kyekyere -> Fa to kotoku a ɛyɛ dry mu -> Fa gu ICE-WATER SLURRY so"]

    EventType -->|"2. Aniwa NKYERƐKYERƐMU ANAA POWDER TUTUMI A ƐWƆ ANI MU"| EyeCheck{"2. Ɔpae a ɛbɔ ntɛmntɛm a ɛbɔ anaasɛ nsõ a ɛwɔ soro?"}

    EyeCheck -->|"Explosive Blast anaa Projectile Nkɛntɛnso"| OpenGlobe["OPEN-GLOBE RUPTURE (NHOHORO ANAA NMIMIA): 1. MMFA NSƐM, NHORO, anaa MMFA gauze nhyɛ aniwa so 2. Fa Tape Rigid Eye Shield anaa Paper Cup Bottom gu nnompe orbit so 3. Patch UNINJURED eye -> Immediate Ophthalmology ED"]

    EyeCheck -->|"Nsõ a Ɛwɔ Afã a Ɛnyɛ Den (Globe a Enni Nsɛe) ."| AshFlush["ALKALINE ASH IRRIGATION: 1. Twe aniwa no mu brɛoo (mia nnompe anim/afono nkutoo so) 2. Fa nkyene 0.9% anaa nsuo a ɛyɛ hyew hohoro ho brɛoo simma 15 na hohoro alkaline potassium carbonate nkaeɛ -> Slit-Lamp Exam"]

    EventType -->|"3. DUD SHELL / MISFIRE WƆ TUBE MU"| DudProtocol["20-TO-30-MINUTE HANGFIRE STANDOFF: 1. MMFA nhwɛ tube no ase da anaasɛ nsan nsɔ dud fuse 2. Popa 30 m (100 ft) perimeter na twɛn simma 20 kosi 30 3. Fa turo hose fa nsuyiri tube no fi akyirikyiri, afei fa shell gu 20 L nsu bokiti mu anadwo"]

Deep dive 1: Abɔde mu nneɛma a ɛfa atɛkyɛ a wɔsan de gu mu a ɛpae, atopae a ɛdannan, ne dud hangfires ho¶

Sɛ yɛte sɛnea wim atɛkyɛ a wɔde di dwuma anaasɛ aguadidan mu atɛkyɛ a wotumi san de gu mu no yɛ adwuma ase a, ɛkyerɛkyerɛ nea enti a sɛ wɔsan de nsu a ɛyɛ hyew gu mu ne nhwɛ a wɔde hwɛ afiri a wɔamfa ogya a ɛnteɛ so yɛ nneyɛe abien a edi awu sen biara wɔ ogyaframa mu.

1. Wɔ Aerial Mortar Shell mu: Lift Charge vs. Bere Fuse vs. Break Charge¶

Wim atɛkyɛ biara a wotumi san de gu mu (sɛ́ ɛyɛ adetɔ toa a ɛyɛ milimita 44 anaasɛ aguadi kurukuruwa a wɔde kyerɛ akutu a ne kɛse yɛ milimita 100) yɛ atuo a ɛpae a ɛwɔ afã abien: 1. Afã 1: Black-Powder Lift Charge (75% KNO3 + 15% Charcoal + 10% Sulfur) wɔ Base no so: - Wɔde ahyɛ krataa a ɛyɛ tratraa anaa kotoku a ɛwɔ akorade no ase pɛɛ mu. Sɛ wosɔ visco ahobammɔ fuse tenten a ɛyɛ ahabammono a epue fi atɛkyɛ tube no atifi no a, ogyaframa no hyew kɔ fam wɔ akorade no nkyɛn kɔ fam na ɛhyew lift charge no. - Lift charge no deflagrates wɔ 0.02 seconds, na ɛma gas piston a ɛwɔ nhyɛso kɛse bi wɔ mortar tube no ase a wɔato mu a ɛtow shell no mita 30 kosi 100 (anammɔn 100 kosi 330) kɔ wim wɔ kilomita 150 kosi 250 dɔnhwerew biara (akwansin 95 kosi 155 dɔnhwerew biara). 2. Stage 2: Pyrotechnic Bere-Akyɛ Fuse ne Flash-Powder Break Charge: - Wɔ milisekɔn pɛpɛɛpɛ a lift charge no tow wɔ tube no ase no, mframa a ɛyɛ hyew no sɔ pyrotechnic time-delay fuse a ɛyɛ den a ɛhyew brɛoo (a wɔasusuw sɛ ɛbɛhyew 2.5 kosi 4.0 seconds bere a shell no foro kɔ apogee). - Sɛ akorade no du ne kwan a ɛkɔ soro sen biara a, bere fuse no du akorade no mfinimfini na ɛpae flash-powder burst charge (potassium perchlorate + aluminum/titanium powder), a ɛrepae nsoromma a ɛyɛ dade kɔla a ɛrehyew akɔ abɔnten wɔ kurukuruwa a ne tenten yɛ mita 50 mu.

====================================================================================
   THREE LETHAL MORTAR SHELL FAILURE MODES: EMBER RELOAD, UPSIDE-DOWN & HANGFIRE
====================================================================================

   [1] HOT-TUBE EMBER RELOAD BLAST       [2] UPSIDE-DOWN SHELL ("FLOWERPOT")
        (Operator Hand Over Muzzle)          (Lift Charge on TOP, Break on BOTTOM)
               \ (Hand) /                              || Fuse Lit
                \  ||  /                               \/
            +--------------+                    +--------------+
            |   [Shell]    |                    | [Lift Charge]| <-- Fires DOWNWARD
            |      ||      |                    |  [Break Core]| <-- Detonates at
            |      \/      |                    |    (Arrow    |     Ground Level
            | [Lift Pouch] |                    |  Points Down)|     Shredding Tube
            |  * EMBER *   |                    +--------------+
            +--------------+                    ================
          Glowing paper ember at              Shell loaded upside down in dark;
         bottom ignites lift pouch           explodes inside tube 3 sec later.
         instantly upon drop-in.

   [3] THE "HANGFIRE" DUD TRAP (SMOLDERING DELAY FUSE)
         Fuse stops sparkling outside -> Smolders invisibly inside paper casing
         for 3 to 12 minutes -> Fires 150 km/h shell straight into face of
         person leaning over tube. (MANDATORY RULE: Wait 20-30 Min + Hose Soak).
====================================================================================

2. Nea Enti a Sɛ Wɔsan de Mortar Tube a Wɔatow Nnansa Yia Gu Mu no Bɔ Nsa ne Anim¶

Sɛ wotow akutu fi HDPE anaa krataa a wɔde ayɛ atɛkyɛ mu a, black-powder lift charge no gyaw kraft krataa a ɛrehyew asinasin, fango a ɛhyerɛn, ne krataa a ɛyɛ hyew wɔ toa a ɛyɛ sum no ase: - Saa krataa a ɛyɛ hyew no hyerɛn komm wɔ digrii Celsius 400 kosi 600 (digrii Fahrenheit 750 kosi 1,100) simma 2 kosi 8 bere a wɔatow agu akyi, na afiri a ɛda hɔ a ɛda hɔ no mu mframa a ɛbɔ wɔ afiri no mu no na ɛma ahoɔden. - Esiane sɛ wɔde krataa a ɛyɛ tratraa abɔ akorade a ɛyɛ tuntum a wɔde ma nneɛma so a ɛwɔ akorade a edi hɔ no ase (ɔhyew a ɛyɛ hyew 280 kosi 300 digrii Celsius / 536 kosi 572 digrii Fahrenheit) mu nti, bere a obi a ɔyɛ adwuma no kura akorade foforo bi wɔ ano no so na ɔtow gu afiri no ase no, akorade no ase si fam ahinanan wɔ ember a ɛhyerɛn no so. - Sɛ́ anka nea ɔyɛ adwuma no benya sikani 6 a ɔde bɛhyew green-fuse de akɔ no, akorade no tow fi toa no mu ntɛm ara wɔ sikani 0.05 mu bere a nea ɔyɛ adwuma no nsateaa da so ara wɔ ano no mu na wɔn aniwa socket ne wɔn moma so wɔ sɛntimita 30 (nsateakwaa 12) wɔ tube no atifi. - Sɛnea Wobesiw Reload Detonations Siw: 1. Never place your face, head, chest, or hands directly over the open mouth of a mortar tube at any time (even when loading an unlit shell). Hold the shell by its top fuse string from the side of the tube at arm's length so that if it fires immediately upon touching the bottom, it shoots harmlessly past your shoulder into the sky. 2. Allow at least 10 minutes of cooling time between shots in the same tube, invert the cold tube to dump out all paper ash, and inspect the bottom with a flashlight before reloading (or buy pre-loaded multi-shot cakes that never require manual reloading).

Deep dive 2: Prehospital trauma care for "Fireworks Blast Hand" and finger amputations¶

Sɛ ogyaframa, nkyia, Romafo kyɛnere akyi gya, anaasɛ atɛkyɛ pae wɔ onipa nsa mu anaa ne nkyɛn a, ɛma oprehyɛn a wɔde wɔn nsa hyɛ ase a wɔde san yɛ oprehyɛn a egye ntɛmpɛ a wɔfrɛ no "The Fireworks Blast Hand."

1. The Four-Zone Biomechanics of a Closed-Fist Pyrotechnic Blast¶

Hand surgeons classify fireworks hand blasts as a combined high-pressure barotrauma, ballistic shrapnel, and 1,500 C thermal-chemical burn injury: 1. Hyperextension Dislocation and Thumb Carpometacarpal (CMC) Avulsion: - The expanding spherical gas bubble inside the palm forces the thumb and fingers into violent hyperextension and abduction, ripping the thenar muscles (thumb web space) apart, splitting the skin of the palm down to the carpal tunnel, and either dislocating or completely amputating the thumb, index, and middle fingers. 2. Digital Artery Thrombosis vs. Radial/Ulnar Hemorrhage: - While small digital arteries in amputated finger stumps often go into vasospasm initially, partial lacerations of the superficial and deep palmar arches or the radial and ulnar arteries at the wrist bleed profusely, rapidly leading to hemorrhagic shock, especially in children and adolescents. 3. Anamɔn biara Mmoa a Edi Kan a Wɔde Ma Nsa a Wɔatwitwa ne Digits a Wɔatwa: - Step 1 (Control Bleeding): Lay the patient flat. Place a thick pad of sterile gauze (moistened with sterile saline or clean water so it does not stick to raw burned tendons) over the palm and wrap firmly with an elastic roller bandage, elevating the hand above heart level. If bright red blood continues soaking through or spurting from the wrist/forearm, apply a CoTCCC windlass tourniquet 5 to 8 centimeters (2 to 3 inches) above the wrist or on the upper arm and twist until bleeding stops completely. - Step 2 (Remove All Rings, Watches, and Bracelets on the Injured Limb Within 60 Seconds): Blast-injured hands and wrists swell to twice their normal diameter within 15 minutes. A wedding band or fashion ring left on a surviving finger acts as a rigid steel tourniquet that causes ischemic gangrene and costs the patient a second finger. Slide or cut all rings and wristwatches off immediately. - Step 3 (Proper "Bag-on-Ice-Water" Preservation of Amputated Fingers): - Search the ground with a flashlight for any amputated fingers, thumb tips, or large bone/skin segments (bring every piece to the hospital; even if a badly crushed index finger cannot be replanted, hand surgeons frequently use its intact skin, nerves, and bone as "spare-parts microsurgical grafts" to save and reconstruct the thumb). - Gently rinse loose dirt off the amputated finger with sterile saline (never scrub it and never soak it in antiseptic, alcohol, or hydrogen peroxide). - Wrap the finger in a piece of sterile gauze lightly moistened with saline, seal it inside a clean, dry zippered plastic bag, and place that sealed bag inside a second container filled with a slurry of half ice and half water (4 C / 39 F). Never let an amputated finger touch ice directly (causes frostbite crystal necrosis) and never submerge it loose in water (causes hypotonic tissue maceration).

====================================================================================
     CORRECT MICROVASCULAR PRESERVATION OF AMPUTATED FINGERS ("BAG-ON-SLURRY")
====================================================================================

                     +---------------------------------------+
                     |     OUTER CONTAINER / COOLER CUP      |
                     |   Filled With 50% Ice + 50% Water     |
                     |          (Maintains 4 C / 39 F)       |
                     |    +-----------------------------+    |
                     |    |  SEALED WATERTIGHT ZIPLOC   |    |
                     |    |  +-----------------------+  |    |
                     |    |  | Amputated Finger/Thumb|  |    |
                     |    |  | Wrapped in Moistened  |  |    |
                     |    |  | Sterile Saline Gauze  |  |    |
                     |    |  +-----------------------+  |    |
                     |    +-----------------------------+    |
                     +---------------------------------------+
====================================================================================

Deep dive 3: Corneal thermal burns, alkaline potassium carbonate residue, and open-globe shielding¶

One in five fireworks injuries strikes the eye, and bystanders (especially children watching from 3 to 15 meters away) account for nearly 50 percent of all fireworks eye blinding incidents.

1. Nea Enti a Ogya a Wɔde Tow Aniwa a Ɛpirapira Yɛ Ahunahuna Mmiɛnsa: Ɛpaapae Blunt + 1,500 C Burn + Alkaline Burn¶

When a misfired mortar shell, bottle rocket, or Roman candle star strikes the eye: 1. Blunt & Penetrating Open-Globe Trauma: Ɔtopae a ɛyɛ milimita 44 a wɔde ayɛ atɛkyɛ anaa toa rɔke bɔ aniwa no mu denneennen 100 kosi 200 km/h (60 kosi 125 mph), na ɛma open-globe rupture (corneoscleral laceration), traumatic hyphema (mogya a ɛhyɛ anim dan no mu ma), ahwehwɛ a ɛtwetwe, ne retina a ɛpaapae. 2. Potassium Carbonate a ɛyɛ alkaline ( .K2CO3) Saponification: Powder tuntum a wɔahyew ( .KNO3 + C + S) na nsoromma a ɛyɛ hyew gyaw potassium carbonate ( ) nkae a ɛyɛ hyew wɔ akyi.K2CO3), potassium sulfide a wɔde yɛ nneɛma ( .K2S), ne dade oxides a alkaline pH yɛ 10.5 kosi 12.0. Nea ɛnte sɛ acid no, alkaline ogyaframa nkae ma srade acid a ɛwɔ ani nkwammoaa ntini mu yɛ saponifies, na edi kɔ akyiri wɔ aniani stroma no mu simma biara a ɛbɛtra nusu film no mu.

2. The Critical Ocular Triage Split: Bere a Ɛsɛ sɛ Wɔbɔ Ho Ban Nkutoo vs. Bere a Ɛsɛ sɛ Wogugu Nsu Bbrɛoo¶

Ansa na wobɛka ogyaframa a wɔde apira w’ani no, hwɛ aniwa no mu wɔ kanea a wɔde tow nneɛma ase (a wunmia aniwa no anim) na si gyinae yi: 1. SƐ OPEN-GLOBE RUPTURE HO NKYERƐKYERƐMU BIARA WƆ HƆ -> SHIELD NKUTOO (NHORO, MMƆMMIA): - Red Flags: (a) Wɔde fliying projectile (rocket, shell, casing fragment, anaa PVC shard) bɔɔ ɔyarefo no tẽẽ; (b) osuani no hwɛ sɛ ɔte sɛ nusu, ne sorokɔ, anaasɛ wɔatwe akɔ ɔfã biako; © iris ntini a ɛyɛ bruu anaasɛ jelly a emu da hɔ apue; (d) mogya ahyɛ aniwa no anim ma (hyphema); anaa (e) aniwa no te sɛ nea mframa akɔ fam. - Adeyɛ: MFA tap asuten a ahoɔden wom ngugu so nsu, NTWE sliver biara a wɔde ahyɛ mu, na MMFA ngo nhyɛ aniwa no mu. Twitwa ase no sɛntimita 4 (inches 1.5) fi krataa anaa foam kuruwa a ɛho tew so (anaasɛ fa aluminium Fox aniwa kyɛm a ɛyɛ den di dwuma) na fa teyp ntwa nnompe moma so brow ne cheekbone de ayɛ dome vault a ɛbɔ ho ban. 2. SƐ FINE ASH, SPARKS, ANAA POWDER SMOKE NKUTOO NA ƐHYƐN ANI MU NSƐM MU -> FA GUA GU SO MMƆBƆ SIMA 15: - Sɛ projectile biara anbɔ aniwa no a, aniwa no yɛ kurukuruwa na ɛwɔ mfinimfini, na tuo mu wusiw pa, sparkler flakes, anaa ash nkutoo na ɛbɔ kɔ aniwa no mu, fa sterile 0.9% normal saline anaa nsu a ɛyɛ hyew gugu aniwa a abue no so brɛoo simma 15 kosi 20 (mia wo nsateaa no nkutoo wɔ bony brow ridge ne cheekbone no so, ɛnkɔ so da wiase no ankasa) sɛ wɔbɛhohoro alkaline potassium carbonate nsõ ansa na wɔakɔ Dwumadibea a Ɛhwɛ Nneɛma a Egye Ntɛmpɛ So.

Mpɔtam hɔ ntɛmpɛ nɔma ne adwumakuw no nhyehyɛe ahorow¶

Frequently asked questions¶

Why should I NEVER walk up to a "dud" firework or try to relight a fuse that went out?¶

When a firework fuse appears to stop burning on the outside, the black-powder core frequently continues **smoldering invisibly inside the paper wrapper or mortar tube (`a hangfire`)** for **5 to 15 minutes** with zero visible smoke or sparks. Walking up to peer down the barrel of a mortar tube or bending down to relight a short stub of fuse places your eyes, face, and brain directly over the muzzle at the exact moment the smoldering ember hits the lift charge and launches the shell at **160 kilometers per hour (100 miles per hour)**. Always wait a strict **minimum of 20 to 30 minutes**, hose the device down from a safe distance, and submerge it in a bucket of water overnight.

Why did a reloadable mortar shell explode the instant I dropped it into the tube before I even lit the fuse?¶

When you fire an aerial shell from a mortar tube, the black-powder explosion leaves behind **tiny glowing paper and charcoal embers** at the bottom of the dark barrel that stay hot (**400 to 600 degrees Celsius**) for several minutes. Because the bottom of the next reloadable shell contains an exposed tissue-paper pouch of **black-powder lift charge**, dropping a fresh shell into a recently fired tube sets the new shell right on top of the glowing ember, firing it **0.05 seconds later while your hand and face are directly over the mouth of the tube**. Always wait at least **10 minutes** between reloads, dump out all ash, and hold shells from the side at arm's length when loading.

How do I preserve an amputated finger or thumb after a fireworks hand blast so surgeons can reattach it?¶

Follow the microsurgical **"Bag-on-Ice-Water Slurry" rule**: (1) Gently rinse loose dirt off the amputated finger with sterile saline or clean water (never scrub it or put alcohol/peroxide on it); (2) wrap the finger in a piece of **sterile gauze lightly dampened with saline**; (3) seal it inside a **dry, watertight zippered plastic bag**; and (4) place that sealed bag on top of a **mixture of half ice and half water**. **Never put an amputated finger directly onto bare ice or dry ice**, which freezes and bursts the microscopic blood vessels so the digit cannot be replanted. Bring all recovered finger fragments to the hospital, even if crushed, because surgeons use them as spare-parts grafts to save the thumb.

Dɛn nti na ɛsɛ sɛ mede krataa kuruwa bi teyp so wɔ ogyaframa a wɔde apira aniwa so sen sɛ mɛmia gauze so?¶

Ogya a wɔde tow ntɛmntɛm, casing shrapnel, ne asorɔkye a ɛpae taa **twitwa anaa ɛpaapae aniwa no fasu (`an open-globe injury`)**. If you press a folded gauze pad or ice pack directly against a ruptured eyeball, the external pressure **squeezes the delicate iris, lens, and retina out through the tear**, causing permanent blindness. Instead, cut the bottom off a clean **paper or foam drinking cup** and tape it across the **hard bony brow ridge and cheekbone** so it forms a rigid dome over the eye without touching the eyeball or eyelids.

Why is it so dangerous to hold a Roman candle in your hand when shooting it?¶

Romafo kyɛnere tow magnesium a ɛredɛw ne dade nkyene a ɛyɛ **1,500 digrii Celsius (2,730 digrii Fahrenheit)** bɔɔl 5 kosi 10 fi krataa a wɔde yɛ afiri a wɔde **dɔte a wɔahyɛ no den** disk nkutoo na ɛkyekyere n’ase awiei no mu. Sɛ dɔte ase plug no mu paapae anaasɛ cardboard fasu no mu paapae wɔ tow a ɛto so 3 anaa 4 no so a, propellant charge no **tow bɔɔl a ɛyɛ hyew fitaa a ɛrehyew no kɔ akyi fi tube no ase tẽẽ kɔ wo nsa ne wo nsateaa a wɔakyekyere no nsateaa mu**, na ɛde ntini a ɛto so abiɛsa hyew na radial artery hemorrhage ba. Sie Romafo kyɛnere bere nyinaa wɔ anhwea bokiti mu fã anaasɛ fa kyekyere dua bi a ɛwɔ fam. Sɛ wofa mmoa a edi kan, CPR, ne Stop the Bleed adesua a wɔagye atom a efi Red Cross, St John Ambulance, anaa mpɔtam hɔ beae a wɔhwɛ apirakuru so a, esiesie wo sɛ wobɛyɛ ho biribi wɔ ɔtopae anaa ɔhyew a egye ntɛmpɛ biara ho.

Akwankyerɛ ahorow a ɛfa ho¶

• Ogya a wɔde tow atɛkyɛ tube tip-over, shell misfire, dud soaking, ne Romafo kyɛnere backfire
• Ogya a ɛpae, sparkler hyew, ne ɔtopae a ɛpaapae
• Traumatic amputation: finger, hand, and limb preservation
• Aniwa a wɔapirapira, nnuru a wɔde petepete so, ne aniwa a ɛbue a wɔde bɔ wɔn ho ban
• Severe bleeding and windlass tourniquet application

Sources and official guidance¶

• United States Consumer Product Safety Commission (CPSC) & National Fire Protection Association (NFPA): Afe afe Ogya a Wɔde Tow Afe Amanneɛbɔ (Afe afe Amanneɛbɔ (Afe afe Amanneɛbɔ (Afe afe Amanneɛbɔ a Ɛfa Ogya a Ɛho Hia Apirakuru a Dwumadibea a Ɛho Hia Ntɛmntɛm Asa Wɔ Mfiri Su ne Nipadua Mpɔtam So), NFPA 1123 (Ogya a Wɔde Kyerɛw Mmara: Simma 20 kosi 30 a Wɔtwɛn ne HDPE vs. PVC Mortar Gyinapɛn), ne 16 CFR Ɔfa 1507.
• American Society for Surgery of the Hand (ASSH) & American College of Surgeons (ACS): Clinical Management of the Fireworks Blast Hand (Thenar Space Disruption, Digital Artery Thrombosis, Ring Removal, and Indirect 4 C Normothermic/Hypothermic Replantation Transport).
• Amerika Aniwa Ho Adesuabea (AAO): Aniwa mu Ogyaframa Ho Apirakuru Triage: Open-Globe Shielding Protocol (Fox Shield / Krataa Kuruwa Vault), Alkaline Potassium Carbonate (K2CO3) Irrigation, and Bystander Injury Prevention.
• Health and Safety Executive (HSE, United Kingdom) & Natural Resources Canada (NRCan Explosives Regulatory Division): Working Safely with Display and Consumer Fireworks (Hangfire Standoff Intervals, Mortar Rack Bracing, and Category F2/F3/F4 Separation Distances).