If doctors suspect that the whole body has been affected, electrocardiography is done to check for abnormal heart rhythms.

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The first and most obvious was that being tased hurts more than anything has ever hurt. However, the pain was gone as soon as that five-second "ride" ended.

But the M26 Advanced Taser is anything but child's play. Capable of sending a 50,000 volt charge through the victim's body, the Taser can bring a grown man ...

Wells said it's actually the amperes that pose a shock danger. He laid out this stats for the class: a Taser uses fewer amperes than a Christmas light bulb. That eased my mind a bit before the big moment, well, until I realized that despite the extensive research and testing Taser International conducts on their products, I had signed up to experience intense pain designed to completely incapacitate the subject.

If hydrofluoric acid is ingested, the stomach should sometimes be emptied with a tube inserted into the stomach through the mouth or nose as soon as possible. If emptying is delayed by more than an hour, it is unlikely to help and is therefore avoided.

If the skin is exposed, the exposure is mild, and diagnosis and treatment are prompt, prognosis is good. Burns usually heal over a period of several days to weeks, depending on their severity.

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Taser International has spent years compiling statistics about their devices and how they reduce workers' compensations claims due to officer-involved altercations, cut down on injuries to both suspects and officers and reduced the number of officer-involved shootings. These statistics appeared especially true in larger cities. Wells said that before the Taser, officers had the choice between a baton and their firearm when it came to subduing a dangerous suspect.

If symptoms resemble those of adult respiratory distress syndrome (ARDS), treatments for ARDS may be used. Treatments include mechanical ventilation and proning (turning a person on their stomach).

Wells said that he would likely never have a reason to tase someone my size in the field (I'm 4 feet, 10 inches) because I wouldn't pose much of a physical threat. Yet, an officer never knows what kind of dangerous situation could present itself until that situation rolls around. Wells did follow up his comment about me with the promise to tase me for demonstrative purposes.

If skin exposure was moderate or severe, the person is transferred to a burn center for possible surgery, including skin grafts, removal of dead tissue, and amputation.

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Hydrofluoric acidpH

We also learned about the functions of the weapon that protect officers from complaints about Taser use. The devices record encrypted information about each deployment. The cartridges containing the probes drop tiny discs with the serial number of the cartridge. The GFPD has a policy in place to keep officers from potentially confusing their Taser with their firearm.

Symptoms of hydrofluoric acid exposure vary depending on which body part was exposed to the acid and the concentration of the acid in the solution (whether dilute or concentrated). Pain may occur immediately or develop several hours later.

Plus I have bragging rights now. I was tased. I went through with it. And I raised $500 for the Police Protective Association in the process.

Hydrofluoric acid

Ingesting a dilute solution of hydrofluoric acid may cause the mouth and throat to become red and swollen. Ingesting a small amount of hydrofluoric acid may cause no symptoms. If a concentrated solution is ingested, the stomach is irritated and bleeds, and the lungs may be affected as when hydrofluoric acid is inhaled.

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Usually, injuries due to exposure occur when hydrofluoric acid comes in contact with the skin. Injury can also result when the acid comes in contact with the eyes, is ingested, or is inhaled. Workers may accidentally ingest hydrofluoric acid if it is stored in unmarked containers, such as water bottles. This type of exposure is not common. Outside the workplace, the acid may be ingested when a person attempts self-harm or a young child ingests it out of curiosity.

If exposure of the eyes is mild, symptoms resolve over several days, If exposure is more severe, the cornea may be damaged, and chronic conjunctivitis, clouding of the cornea, glaucoma, or keratoconjunctivitis sicca (dryness of the cornea) may develop.

I'd like to thank everyone who donated to my cause, to the officers who took care of me through the demonstration and give kudos to the other volunteers who literally shared my pain.

Various organizations (such as the Occupational Safety and Health Administration [OSHA] and National Institute for Occupational Safety and Health [NIOSH]) provide recommendations for reducing the risk of exposure to hydrofluoric acid. They include

Ingesting dilute hydrofluoric acid may cause no symptoms or cause the digestive tract to become irritated. However, the irritation can be reversed. Ingesting concentrated hydrofluoric acid may lead to bleeding in the digestive tract or to fluoride toxicity. Either may be fatal.

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The other volunteers and I, like 14 Citizens' Academy classes before us, experienced the power of the Taser firsthand. At first I thought I didn't need to be shot with probes and shocked to understand the purpose of the weapon, especially after reading many court documents that explain the circumstances leading to a subject being tased. But now I realize why many people told me feeling the pain and the compliance it induced would be a unique experience I obviously will not forget.

Exposure to hydrofluoric acid can result in skin burns or other injuries, depending on which body part was exposed to it.

If the eyes are exposed to hydrofluoric acid, doctors flush (irrigate) them with copious amounts of water as soon as possible. Irrigation is begun at a workplace eyewash station and is continued on the way to the hospital.

Contact with the eyes may occur when hydrofluoric acid splashes into the eyes. If the acid is diluted, the eyes may be painful and red, and the conjunctiva (the membrane that lines the eyelid and covers the white of the eye) may bulge. Symptoms may not occur until hours after the exposure. If the acid is more concentrated, symptoms occur more rapidly. The cornea may degenerate, and the eyeball may rupture.

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There is no specific test for fluoride toxicity, but doctors do blood tests to measure levels of calcium, magnesium, and fluoride.

When hydrofluoric acid is inhaled, the prognosis depends on how concentrated the acid was and how long the exposure lasted. If the exposure was mild to moderate, symptoms may resolve on their own over a period of hours to days. If hydrofluoric acid exposure was more severe, the upper airway and/or lungs may remain irritated for months to years.

I also learned some useful facts about the Taser device from Sgt. Jim Wells, the same man who shot the probes and 50,000 volts of electricity into my body. He shared some interesting information about that voltage figure. For example, a static shock on a doorknob carries 35,000 to 100,000 volts. The probes only shock a subject with about 1,500 volts by the time they make contact.

Requiring workers to wear a properly functioning fume hood and appropriate personal protective equipment (PPE), such as goggles, disposable gloves, and an acid-resistant apron

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I learned many things Wednesday night at the Great Falls Police Department's Taser demonstration for the Citizens' Academy.

Hydrofluoric acid is commonly used in many industrial processes, including oil refining, silicon and glass etching, refrigerant production, and aluminum metal production. Hydrofluoric acid is also used as a brick and stone cleaner, rust remover, and wheel cleaner. Most exposure to hydrofluoric acid occurs in the workplace.

If doctor suspect that the lungs contain fluid or if hydrofluoric acid was inhaled or ingested, a chest x-ray and other appropriate tests (such as pulse oximetry) are done. Doctors may also test lung function, although often after the person has recovered.

When hydrofluoric acid is inhaled, the most common symptoms are pain in upper airway, chest pain (described as burning), cough, and shortness of breath. People may also report a burning sensation where the skin contacted the acid, nausea, vomiting, and headache. The throat may be red and swollen, and people may wheeze or make crackling sounds when they breathe. The tiny muscles in the airway's walls may tighten (contract) involuntarily (called bronchospasm), making breathing difficult. When exposure is greater, the lungs may fill with fluid, and people may cough up blood or develop acute hypoxemic respiratory failure (adult respiratory distress syndrome), which may be fatal.

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After the skin is exposed, pain is typically the first symptom and may occur before redness, swelling, blisters, or grayish white patches on the skin (signs of a chemical burn) develop. Pain is often more severe than expected based on how much of the skin is affected. If the fingers and nail beds are burned, the nails may remain intact, and pain may be severe even though the nails and skin may look normal or near-normal.

To diagnose an injury due to hydrofluoric acid exposure, doctors ask questions about potential exposure to the acid, do a physical examination, and may take x-rays or do electrocardiography or endoscopy.

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Fluoride toxicity is treated with calcium and magnesium salts, given intravenously because these levels are low. Fluids are given intravenously, and drugs are given if needed to increase the low blood pressure caused by fluoride toxicity.

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The class also learned about the mindset officers use when it comes to the Taser they wear on their duty belts. Wells says they are trained to use the weapon under certain conditions and learn what situations are not ideal for Taser use. They learn who could be seriously injured by the device, whether from the inevitable fall or the shock itself (which is much less likely). We discussed the types of people an officer would likely not taser due to medical conditions, age or situational factors.

To diagnose an injury due to hydrofluoric acid exposure, doctors ask questions about possible exposure to the acid during the last 24 hours and do a physical examination. They ask about the following:

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Symptoms vary depending on which body part is exposed and may include pain (sometimes described as burning) at the site of the exposure.

When hydrofluoric acid comes in contact with the skin, is ingested, or is inhaled, it may affect the whole body, causing an excess of fluoride in the body (fluoride toxicity). Contact with eyes does not have the same effect. Body-wide effects occur more rapidly when the acid is ingested. Fluoride toxicity can cause a low level of calcium, a low level of magnesium, abnormal heart rhythms, and low blood pressure.