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AfilCa [17]
3 years ago
13

If a chemist wants to do a presumptive test on an unknown substance for the presence of cocaine, which test reagent should they

use?
Medicine
1 answer:
marysya [2.9K]3 years ago
6 0
Marquis reagent is used as a simple spot-test to presumptively identify alkaloids as well as other compounds. It is composed of a mixture of formaldehyde and concentrated sulfuric acid, which is dripped onto the substance being tested.
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Each of the following must be disclosed to the patient before obtaining informed consent for dental radiographs except one. Whic
KatRina [158]

The rights of the patient as the owner of the images are the exception to the patient before obtaining informed consent for dental radiographs.


Dental radiographs,
sometimes known as x-rays, are a crucial component of your dental care. They give your dentist a fuller picture of what's going on in your mouth than an oral examination alone.

Your dentist can detect diseases and developmental disorders using dental radiographs before they worsen. Early injury or infection discovery can help restrict or stop subsequent harm to other oral sites. Your dentist may be informed of changes in your hard and soft tissues through dental radiographs. Radiographs in youngsters enable the dentist to monitor the growth of the jawbone and teeth. Dental radiographs, like medical radiographs, let your dentist assess any facial and oral injuries you may have.


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5 0
2 years ago
It is finaleamination week and you are feeling stressed You decide to eat a candy bar with peanuts and drink big bottle (32oz) o
SashulF [63]
If I’m not mistaken it would be TRUE
8 0
2 years ago
How does left ventricular failure cause pulmonary edema.
castortr0y [4]

Answer:

Heart failure is frequently the cause. Pressures in the heart rise when a sick or overworked left ventricle can't pump out enough of the blood it receives from the lungs. Fluid is pushed past the blood vessel walls and into the air sacs by the increasing pressure.

7 0
2 years ago
43. in developed countries, most individuals die at , whereas in developing countries most individuals die at . a.a hospital; ho
Bogdan [553]

In developed countries, most individuals die at <u>hospitals</u>, whereas in developing countries most individuals die at <u>home</u>.

In excessive earnings nations the bulk of humans die of simply  vast organizations of reasons: cardiovascular sickness and cancer. As cardiovascular sicknesses declined, extra humans died from cancer. The proportion of deaths from maximum different vast reasons of dying increased, too. This has brought about more range in reasons of dying. Generally, wealthier international locations have a better common existence expectancy than poorer international locations, which may be argued to be done via better requirements of living, extra powerful fitness systems, and extra assets invested in determinants of fitness (e.g. sanitation, housing, education).

Thus, option a is the correct choice.

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8 0
1 year ago
The nurse observes a patient in the progressive stage of shock with blood in the nasogastric tube and when connected to suction.
7nadin3 [17]

Especially in patients with coagulopathy, trauma to the GI mucosa during NG tube insertion may cause GI bleeding. Due to ongoing irritation and pressure necrosis, prolonged use of an NG tube might result in the development of ulcers.

A disturbance of the sympathetic nervous system that alters the tone of the blood vessels is referred to as neurogenic shock. Without sympathetic tone, blood cannot adequately circulate throughout the body, which causes temperature dysregulation, a reduced heart rate, and low blood pressure.

<h3>What does the word "shock" mean ?</h3>

Shock, a dangerous condition, could be brought on by the abrupt drop in blood flow throughout the body. Shock can be brought on by trauma, heatstroke, blood loss, allergies, severe illnesses, poisoning, severe burns, and other situations. A person in shock doesn't get enough blood or oxygen to their organs.

  • The four basic types of shock are obstructive, cardiogenic, hypovolemic, and distributive shock.

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8 0
2 years ago
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