Physiology And Pharmacology For Nursing Practice

2425 words - 10 pages

Section one
Homeostasis, which literally means ‘same standing’ from the Greek words for "same" and "steady," refers to any process that living things use to actively maintain fairly stable conditions necessary for survival (Clancy et al., 2011). It is a term introduced by Cannon in 1930 to describe the goal of all the body’s physiological processes. These processes dynamically maintain a relatively constant state called steady-state in the internal environment (CREDO, 2006). The internal environment is the fluid that surrounds cells, which refers to the direct cell survival and material exchange with the environment. The processes maintain the internal environment steady levels of temperature and other vital conditions such as the water, salt, sugar, protein, fat, calcium and oxygen contents of the blood by many systems operating together (Rodolfo, 2013). When the body cannot maintain homeostasis, cells cannot carry out their normal functions, which include considerable adverse effects, such as cellular rupture. Those who are not in Homeostasis are often accompanied by sickness (Silverthorn, 2009 and Kelly, 2004).
Because of the constantly changing environment of the body, adjustments must be made continuously to maintain the internal environment within the set point limit by a variety of homeostatic mechanisms. Therefore, Homeostasis can be considered as synthetic equilibrium, which means constant monitoring to achieve internal balance (Marieb, 2012).
To maintain homeostasis in the body, it requires all the body systems work together, while the nervous and endocrine systems play the most important role. The nervous system reacts quickly to external and internal stimuli, whereas the endocrine system is slower to act but its effects are longer lasting. In addition to the internal control mechanisms, our body's ability to maintaining cellular health is also influenced by external influences based primarily on lifestyle choices and environmental exposures such as medication invention (Barber et al., 2009).
When a homeostatic disturbance occurs, inbuilt and self-adjusting or regulating mechanisms come into effect (Clancy et al., 2011). These mechanisms operate as a feedback system, mainly on the negative feedback which is an automatic response that involves a corrective mechanism to reverse the original change and brings the variable or factor within the internal environment back to normal limit. It is continually ongoing to restore and maintain homeostasis (Marieb, 2012, CREDO, 2006 and Kelly, 2004). The feedback system involves three parts: the receptor, the controller and the effector. The receptor is a sensor to detect and collect the environment shifting information. Then the information from the receptor is received and processed by the controller. At last, the effector responds to the controller’ commands by either enhancing or opposing the stimulus. For instance, when the blood's pH level shifts out of the set point, nerve receptor cells...

Find Another Essay On Physiology and Pharmacology for Nursing Practice

Emotional Intelligence and Reflective Practice in Nursing

2228 words - 9 pages perception has lessened due to age. Nursing is a profession that is more about evidence base and therefore there is rationale for every practice which has to be explained to the client. These explanations need therapeutic relationship between the nurse and the client. Everyone has seen the individual that look either angry, strained, feeling ill or maybe sad. These emotions are interconnected to others not always by words, but by gesticulations

Policies and Procedures in Nursing Practice

1087 words - 4 pages Policies and Procedures in Nursing Practice Policies and procedures in nursing practice are important for nurses to perform and to deliver quality of care and patient safety. Policies and procedures help nurses to prevent errors and carry out procedures safely to the patients. It also brings uniformity in following organizational guidelines. Policies and procedures are designed to influence and determine major decisions and actions, and

Florence Nightingale and Mary Seacole: Nursing Practice

2541 words - 10 pages In today’s society nursing is seen as both a vocation and a profession. It requires knowledge, compassion and skill and is not for the faint of heart. Nurses are respected and trusted, as well as relied upon by people when they are at their most vulnerable. However this has not always been the case, as Florence Nightingale once put it nursing was left to “those who were too old, too weak, too drunken, too dirty, too stupid or too bad to do

Professional Nursing Education Requirements for Entry Into Practice

1080 words - 4 pages Professional Nursing Education Requirements for Entry Into Practice Health care within the United States is changing at a rapid pace. Advances in medicine, life saving techniques, and technology, have drastically improved patient outcomes throughout the years (Taylor, 2008). As a result, nurses need to be able to think critically and provide higher levels of complex patient care in the health care industry (Taylor, 2008). In order to keep up

Leadership and the Doctorate of Nursing Practice Degree

985 words - 4 pages Module 1: Leadership and the Doctorate of Nursing practice Degree QUESTION no.4: Doctoral education research or practice Crossing the Quality Chasem: A New Health System for the 21st Century(IOM, 2001) emphasizes that the safety and quality of care problems exist largely due to system that lacked of adequate prepared staff and system that is not supportive, when they are in practice. In 2002 , The American Association of Colleges of

Evidence Based Practice in Nursing: Benefits and Barriers

815 words - 3 pages Evidence Based Practice has many different definitions and in this essay the writer will be trying to identify what Evidence Based Practice is and why it is important for nursing practice. The writer will also explore whether there are any barriers in the implementation of Evidence Based Practice. Evidence Based Practice is a process which is generally used to describe research strategies. These research strategies allow clinicians to collate

Theory of Caregiver Stress and its Practice in Nursing

1386 words - 6 pages Theory of Caregiver Stress and its Practice in Nursing Primary caregivers are given an opportunity to take care of their loved ones; however, this job comes with a lot of stress and its consequences (Tsai, 2003). Primary caregivers take care of those with a chronic illness such as a family member or friend, are given a task that is so immense that it induces a lot of stress. In the previous decades, many research articles have developed

theory practice for teaching and learning

1902 words - 8 pages an approach based heavily on the presentation and practice of grammatical forms. The important thing, however, is that almost all studies see language learning as a developmental process which is mediated largely by the learner. In other words it is the learners’ experience of using language which enables them to develop a usable language system. The question for teachers is how best to provide that experience and how best to help learners exploit

Desensitization therapy for allergy: theory and practice

1887 words - 8 pages , Frati F, Sieber J, Van Overtvelt L. Immune mechanisms of allergen-specific sublingual immunotherapy. Allergy. Feb 2006;61(2):151-165. 8. Senna GE, Makatsori M, Schiappoli M, Dama AR. Subcutaneous allergen specific immunotherapy: best clinical practice as cornerstone for future development. European annals of allergy and clinical immunology. Oct 2011;43(5):135-140. 9. Calabria CW, Cox L. Accelerated immunotherapy schedules and premedication

Advanced Practice in Nursing reflect on how the course has enabled and facilitated their professional development.

1215 words - 5 pages we should prepared as we are in master level. Master's degree programmes for ANPs include: advanced nursing practice, pharmacology, pharmacotherapy, pathology, physiology, advanced physical assessment skills, research, leadership, quality improvement and case management (Eileen & Rita, 2005). They are almost all included in our course contents and also, these contents seem to be based on experience by patients and needs to extend the

The Self in Social Psychology and Implications for Counseling Practice

3275 words - 14 pages construct on the practice of counseling. The wealth of knowledge written on the topic of self in social psychology presents important and useful constructs that help us to understand ourselves in relation to interactions with others. For example, there are topics written on escaping the self, self-esteem and failure, self as a stressor, and the loss of self in relation to spiritual bliss or ecstasy (Baumeister, 1991). Other “self” topics in

Similar Essays

Nursing Theories And Nursing Practice Essay

2083 words - 8 pages -learning approach in which a hypothesis or suggested solution for improvement is made and testing is carried out on a small scale before any changes are made to the whole system” (p. 736). Healthcare processes need to be constantly evaluated based on evidenced-based-practice for quality improvement and better patient outcomes. Nursing leaders have significant impact on quality management and empowering employees to seek process improvement. In my

Nursing Concepts And Practice Essay

2602 words - 10 pages replacement and suffered with pancreatitis. Due to her hip replacement her mobility was greatly reduced, and the pancreatitis also caused her severe pain. We first explained to her what we were going to do and asked for her consent, which was given verbally, the Code of Conduct states ' those who are legally competent may give consent in writing, orally, or by co-operation' (Nursing and Midwifery Council 2002).To ensure safe practice the area

Readiness For Advance Practice Nursing Essay

1184 words - 5 pages the foundation for advanced practice nursing. At the age of eighteen, the tension at home was unbearable with my step mother and I moved out seeking independence and a career in nursing. The two tools I had were motivation and intelligence. By this time, I was determined to become a nurse and advance my career, no matter how long the journey takes. After careful consideration, I chose a ladder approach because I had no financial support and

Required Educational Preparation For Nursing Practice

1186 words - 5 pages and this author agrees with the National League of Nursing (NLN) concerning scope of practice and preparation for the field of nursing; that an ADN or diploma program is a sufficient level of education for technical nursing practice and the BSN should be the minimum for practice as a professional nurse (Black, 2014, p. 136). This author thinks that the option for an ADN is vital to nursing as a whole, however agrees with the idea that any career