What is a pertinent diagnosis?

What is a pertinent diagnosis?

“A pertinent or secondary diagnosis is a condition that coexisted at the time the plan of treatment was established or developed subsequently, which affects treatment or care.

Which of the following is an example of homeostatic imbalance?

A commonly seen example of homeostatic imbalance is diabetes. In a diabetic, the endocrine system has difficulty maintaining the correct blood glucose levels, so diabetics must closely monitor their blood glucose levels, as shown in Figure below.

How is the process of Ageing a form of homeostatic imbalance?

Aging is a general example of disease as a result of homeostatic imbalance. As an organism ages, weakening of feedback loops gradually results in an unstable internal environment. This lack of homeostasis increases the risk for illness and is responsible for the physical changes associated with aging.

What are some examples of homeostasis?

Humans’ internal body temperature is a great example of homeostasis. When someone is healthy, their body maintains a temperature close to 98.6 degrees Fahrenheit (37 degrees Celsius). Being warm-blooded creatures, humans can increase or decrease temperature internally to keep it at a desirable level.

Is blood clotting an example of homeostatic imbalance?

Positive feedback loops are not common in biological systems. Positive feedback serves to intensify a response until an endpoint is reached. Positive feedback loops control blood clotting and childbirth. Sometimes homeostatic mechanisms fail, resulting in homeostatic imbalance.

How can both negative and positive feedback loops maintain homeostasis?

Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points. In contrast to negative feedback loops, positive feedback loops amplify their initiating stimuli, in other words, they move the system away from its starting state.

Is the sensation of thirst a negative or positive feedback mechanism?

Thirst has long been thought of as a negative homeostatic feedback response to increases in blood solute concentration or decreases in blood volume.

Is hunger a positive or negative feedback?

c. a. This is regulated by a positive-feedback loop as the stimulus (hunger) has changed direction in response to a signal (fullness). b. This is regulated by a negative-feedback loop as the stimulus (red blood cell release) has changed direction in response to a signal (presence of enough red blood cells).

What is meant by negative feedback?

Negative feedback (or balancing feedback) occurs when some function of the output of a system, process, or mechanism is fed back in a manner that tends to reduce the fluctuations in the output, whether caused by changes in the input or by other disturbances.

Is blood pressure positive or negative feedback?

Regulation of blood pressure is an example of negative feedback. Blood vessels have sensors called baroreceptors that detect if blood pressure is too high or too low and send a signal to the hypothalamus.

What are the 3 components of negative feedback?

A negative feedback system has three basic components: a sensor, control center and an effector. (Figure 1.3. 2a). A sensor, also referred to a receptor, monitors a physiological value, which is then reported to the control center.

Is Sweating an example of negative feedback?

An example of negative feedback is body temperature regulation. If this is not enough to cool the body back to its set point, the brain activates sweating. Evaporation of sweat from the skin has a strong cooling effect, as we feel when we are sweaty and stand in front of a fan.

What is the main general purpose of negative feedback?

Negative feedback occurs when a system’s output acts to reduce or dampen the processes that lead to the output of that system, resulting in less output. In general, negative feedback loops allow systems to self-stabilize. Negative feedback is a vital control mechanism for the body’s homeostasis.

What is negative feedback control?

In a “negative feedback control system”, the set point and output values are subtracted from each other as the feedback is “out-of-phase” with the original input. An example of a negative feedback system is an electronic amplifier based on an operational amplifier as shown.

Is doing exercise a negative feedback?

When exercising, negative feedback loops work to maintain homeostatic set points other than heart rate and blood pressure. When you exercise, your muscle tissues consume oxygen and produce carbon dioxide as a waste product.

What is an abnormal negative feedback loop?

A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.