Answer: D. Contractility of the heart muscle refers to the force of contraction that this muscle can exert.
Explanation:
The myocardial contractility is ability of the heart muscles to contract. This is achieved by the forces which develop between the contracting muscles caused by the filaments of actin and myosin.
The degree of binding of the muscle filaments dependents upon the calcium ion concentration. These actions are controlled in vivo by the sympathetic nervous system. It is driven by the release of the catecholamine, which is a process which determines the calcium ion concentration inside the cytosol of the muscles of the heart.
Answer:
One in 14 middle school students has used cigarettes in the past 30 days and one in 4 high school students has used cigarettes in the past 30 days.
Explanation:
Source: CDC 2018
The factors would the nurse identify as affecting the anxiety level of patients admitted to the intensive care unit is pain, intubation and immobilization .
<h3>What is meant by intubation?</h3>
A medical professional will intubate a patient by inserting a tube into their mouth or nose and then into their trachea, or windpipe. The tube maintains the trachea's opening, allowing air to pass through. A device that distributes air or oxygen can be connected to the tube.
Now, as a general rule, an endotracheal tube or breathing tube is typically left in your loved one's throat or larynx for up to two weeks at most, unless there are specific and uncommon conditions.
As a result of intubation, the majority of people only experience minor side effects including a sore throat and hoarseness. Some people don't even know they were intubated because they exhibit no symptoms.
To learn more about intubation refer to:
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Answer:
The Living Will
Explanation: Living Will is a document giving directives to the care givers and physicians on how and when to withdraw medical supports to patients with terminally illness or withhold artificial supports.
It can only be used if the person will not be able to give the instructions himself,without this document the doctor is legally and ethical bound to keep the terminally patient alive till the Document is fully signed.The living will help the terminally ill person and his or her relatives to know about what is to be administered on the person.
Answer:
The cerebral cortex is the answer. A.
Explanation:
