In: Physics
Heat is physical principals that is associated with our organism
.
discuss the biophysical aspects of Heat . define the biological
features of Heat and its use in medicine and pharmacy.
You will prepare a word file, there can be some figures and
illustration.
{{AT LEAST 4 PAGES MAXIMUM 7 PAGES .}}
Biophysical Aspects
Humans maintain a relatively constant core temperature through the dynamic balance between endogenous heat production and heat dissipation to the surrounding environment. In response to metabolic or environmental disturbances to heat balance, the autonomic nervous system initiates cutaneous vasodilation and eccrine sweating to facilitate higher rates of dry (primarily convection and radiation) and evaporative transfer from the body surface; however, absolute heat losses are ultimately governed by the properties of the skin and the environment. Over the duration of a heat exposure, the cumulative imbalance between heat production and heat dissipation leads to body heat storage, but the consequent change in core temperature, which has implications for health and safety in occupational and athletic settings particularly among certain clinical populations, involves a complex interaction between changes in body heat content and the body's morphological characteristics (mass, surface area, and tissue composition) that collectively determine the body's thermal inertia.
Biological Features of Heat
In physics, heat is a form of energy transferring between objects because of a difference in temperature. Heat transfers from one that has higher temperature to another that has lower temperature. Transfer may be directly (e.g. contact) or indirectly (e.g. via convection circulation). For chemical systems the sign for heat flow into the system is positive, because this process increases the internal energy of the system. Heat flowing out of the system is defined to be negative, since this process decreases the internal energy of the system
Use of heat in medicines & pharmacy
During the summer, extreme temperatures can hinder proper transportation of medication. Heat trapped in the package coupled with heat in the surrounding vehicle may reduce the medication’s effectiveness, and even render it ineffective. Some drugs, such as nitroglycerin, are especially susceptible to summer heat, and should be kept at the temperature listed on the bottle. Otherwise, they may not work as expected, even though they are not necessarily harmful.However, in some circumstances, the chemical structure of the drug can change and become harmful to your health. Different medications may require different storage temperatures to maintain their effectiveness.
Due to their different compositions, some medicines remain stable at temperatures below 70 degrees Fahrenheit. Other medications decompose to form different compounds, some of which can be toxic. Before leaving your pharmacy, double check the storage instructions, especially if you are using compound medication. And, when transporting medicine, keep it in a container that allows for a free supply of fresh air.
Capsules, tablets, inhalers, liquids, injectables, and more. Medicine comes in many forms and serves many purposes. But one thing they all have in common is they do not do well in extreme temperatures.
Both excessive heat and cold can have significant impact on how well medications — both prescription and over-the-counter — do their job. While that might not be a big deal for a daily vitamin, the impact of a less-than-effective heart medication or asthma inhaler has the potential to be fatal.
Baystate Health’s medication Safety Officer Mark Heelon, explain the facts and offer safety guidelines.
All medicine comes with label instructions regarding safe storage. Most medicines should be stored at 59 to 77 degrees °F in a cool, dry place. That degree range is important. The chemicals and components of some drugs can be changed when exposed to different temperatures. For example, drugs that contain hormones (think birth control, chemotherapy drugs, anti-seizure medications, and antibiotics) don’t work as well when exposed to temperatures outside their recommended storage range.