Showing posts with label BASIC CONCEPT. Show all posts
Showing posts with label BASIC CONCEPT. Show all posts

Wednesday, April 9, 2014

Anatomy and Physiology Notes: Conduction System of the Heart

   Key Concepts
1. The electrical activity of cardiac cells is caused by the selective opening and closing of plasma membrane channels for sodium, potassium, and calcium ions.

2. Depolarization is achieved by the opening of sodium and calcium channels and the closing of potassium channels.

3. Repolarization is achieved by the opening of potassium channels and the closing of sodium and calcium
channels.

4. Pacemaker potentials are achieved by the opening of channels for sodium and calcium ions and the closing of channels for potassium ions.

5. Electrical activity is normally initiated in the sinoatrial (SA) node where pacemaker cells reach threshold first.

6. Electrical activity spreads across the atria, through the atrioventricular (AV) node, through the Purkinje system, and to ventricular muscle.

7. Norepinephrine increases pacemaker activity and the speed of action potential conduction.

8. Acetylcholine decreases pacemaker activity and the speed of action potential conduction.

9. Voltage differences between repolarized and depolarized regions of the heart are recorded by an electrocardiogram (ECG).

10. The ECG provides clinically useful information about rate, rhythm, pattern of depolarization, and mass of electrically active cardiac muscle.

Pathway
SA Node
|
Walls of the Atrium (Atrial Contraction)
|
AV Node
|
Delay in transmission
(To provide ample time for ventricular filling)
|
Bundle of His
|
Left and Right Bundle Branch
|
Purkinje Fibers
|
Ventricular Contraction

Friday, February 28, 2014

Human Immunodeficiency Virus / Acquired immunodeficiency syndrome Lecture Notes

This is a Medical Surgical Nursing lecture note on AIDS/HIV in outlined format. Information and concepts are compressed to provide a quick review of the topic. Some information are so compressed that some concepts are not expounded in detail. If it is your first time to meet such information please refer to your textbook for further explanation of the concept. This review material requires a student to have a prior knowledge and good foundation of the subject matter for this only emphasizes important/ key information deemed important in understanding concepts in Pathophysiology and Medical Surgical Nursing.



Acquired immunodeficiency syndrome (AIDS)

  •  AIDS is a viral disease caused by human immunodeficiency virus (HIV), which destroys T cells, thereby increasing susceptibility to infection and malignancy
  •  The syndrome is manifested clinically by opportunistic infection and unusual neoplasms.
  • AIDS is considered a chronic illness.
  • The disease has a long incubation period, sometimes 10 years or longer.
  • Manifestations may not appear until late in the infection.


High-risk groups
Heterosexual or homosexual contact with high-risk individuals
Intravenous drug abusers
Persons receiving blood products
Health care workers
Babies born to infected mothers

Assessment
Malaise, fever, anorexia, weight loss, influenza-like symptoms
Lymphadenopathy for at least 3 months
Leukopenia
Diarrhea
Fatigue
Night sweats
Presence of opportunistic infections
Protozoal infections (Pneumocystis jiroveci pneumonia, major source of mortality)
Neoplasms (Kaposi's sarcoma, purplish-red lesions of internal organs and skin, B-cell non-Hodgkin's lymphoma, cervical cancer)
Fungal infections (candidiasis, histoplasmosis)
Viral infections (cytomegalovirus, herpes simplex)
Bacterial infections

Interventions
1. Provide respiratory support.
2. Administer oxygen and respiratory treatments as prescribed.
3. Provide psychosocial support as needed.
4. Maintain fluid and electrolyte balance.
5. Monitor for signs of infection.
6. Prevent the spread of infection.
7. Initiate standard precautions.
8. Provide comfort as necessary.
9. Provide meticulous skin care.
10. Provide adequate nutritional support as prescribed.


"Success is not final, failure is not fatal: it is the courage to continue that counts"

Wednesday, January 29, 2014

Pre-Board Exam Dill: Fundamentals of Nursing C

This is a 30 point Pre-Board Exam Drill on Fundamentals of Nursing SET C.

Test your knowledge on nursing concepts, test your test-taking skills and develop your attitude in attacking board exam questions. Answer these questions on a piece of paper. Check your answers and don't forget to review the rationale behind the correct answer. Good luck with your exam!

1. When a client responds to a crisis situation or an acute injury, the sympathetic nervous system will respond in which of the following ways?
a. it will increase blood flow to the abdominal organs
b. it will decrease blood flow to the vital organs
c. it will stimulate the adrenals to release epinephrine


2. During the clonic phase of a generalized seizure, you may expect to see:
a. pupil dilatation, tachycardia and muscle spasms
b. bladder incontinence, elevated blood pressure and diaphoresis
c. loss of consciousness, cessation of breathing and cyanosis
d. contracted throat muscles, hyperventilation and salivation


3. The physician orders ice for the scrotum of a client diagnosed with epididymitis. The nurse correctly assumes that:
a. ice slows circulation and decreases peripheral edema
b. ice should be applied in intervals, not continuously
c. ice is placed on the scrotum continuously until the physician orders otherwise
d. ice will not stop the pain, and it has a placebo effect

4. The best time for menstruating women to perform a breast self-examination is:
a. right before the menstrual period
b. during the menstrual period
c. a few days after the menstrual period
d. 14 days after the menstrual period


5. Which of the following procedures is most effective for preventing hemolytic blood transfusion reactions?
a. administer the blood through 5% dextrose in water (D5W)
b. administration of a steroid prior to the transfusion
c. careful identification of the client and the blood product
d. using a leukocyte-poor filter during the transfusion


6. A superficial partial-thickness burn should heal in:
a. one week c. six weeks
b. three weeks d. two months
Answer A: Healing of superficial partial-thickness burns usually occurs within a week.

7. The setting that is most suitable for the treatment of a client with a full thickness burn is:
a. admission to a burn unit
b. admission to a medical unit
c. treatment in an emergency room or ambulatory care setting
d. home health care
Answer A: Full-thickness burns usually require hospitalization in a burn unit with comprehensive care by a burn team. The age of a client and the body area involved determine the need for emergency attention.

8. A full thickness burn would appear:
a. red, as if client were sunburned
b. bright red and weeping fluid
c. mottled without weeping fluid
d. brown and leather-like


9. In a patient with full thickness burn of the face, the nurse must immediately address:
a. airway management and hypovolemic shock
b. moderate discomfort and minor fluid loss
c. pain management with intravenous morphine
d. wound care


10. A full thickness burn of the face should heal in:
a. one week c. six weeks
b. three weeks d. months


11. If the client with psoriasis complains about pruritus, the nurse should suggest using:
a. drying soaps or agents
b. hot water when bathing
c. emollient lubricants
d. a towel to provide vigorous drying after bathing


12. You are supervising a student nurse giving an IM injection to a client with right hip arthroplasty. You will know the SN requires further instruction if she:
a. administers the injection in the left deltoid muscle
b. turns the client on her right hip to administer the injection
c. keeps the abduction pillow in place and turns the client 10 degrees to administer the injection on the unaffected side
d. administers the injection after turning the client to her left thigh, keeping the abduction pillow in place


13. You are assisting a client to choose a meal that follows his dietary orders of high calorie, high protein, decreased sodium, and low potassium. You will know the understands his dietary guidelines when he chooses:
a. crab, beets and spinach, baked potato, and milk
b. halibut, salad, rice, and instant coffee
c. sirloin steak, salad, baked potato with butter, and chocolate ice cream
d. salmon, rice, green beans, sourdough bread, coffee, and ice cream


14. The best rationale for introducing your-self to a blind client and telling him exactly what you are doing is that these actions:
a. illustrate the principle of open communication
b. decrease the client’s anxiety and fear of the unknown
c. are the accepted procedure for beginning a nurse-client relationship
d. encourage and utilize clear communication

15. Sitting down at the client’s bedside to talk with the client with convey a sense of:
a. sympathy 
b. communication

c. empathy
d. encouragement

16. While assessing a client who has orders for a hot-water bottle, heating pad, or hot compress, the first sign of possible thermal injury is:
a. tingling sensation in the extremities c. edema
b. redness in the are d. pain


17. When charting the procedure for applying restraints to a client, you will include:
a. what the client says about the restraint
b. procedure for applying the restraint
c. physician’s orders regarding the restraint
d. condition of the extremity following application


18. To perform the skill “turning to the side-lying position,” you would lower the head of the bed, elevate bed to working height, move client to your side of the bed, and flex client’s knees. The next intervention, would be to:
a. roll the client on his side
b. reposition client
c. place one hand on client’s hip and other on shoulder
d. reposition client’s arms so they are not under his body

19. Your client insists on being discharged from the hospital against medical advice. From a legal standpoint, the most important nursing action is to:
a. notify the supervisor and hospital administration
b. determine exactly why the client wants to leave
c. put all appropriate forms in the client’s chart before he leaves the hospital
d. request that the client sign the against medical advice (AMA) form


20. You are moving the client from the bed to a chair. The first appropriate intervention is to:
a. dangle the client at his bedside
b. put nonslip shoes or slippers on client’s feet
c. rock the client and pivot
d. position client so that he is comfortable.

21. The primary purpose of client education is to:
a. collect client data
b. determine readiness to learn
c. assess degree of compliance
d. increase client’s knowledge that will affect health status

22. Your initial instruction to a client on the use of crutches to move upstairs should be to:
a. start with crutches and the unaffected leg on the same level
b. start with crutches and the affected leg on the same level
c. place crutches on the step after the affected leg is moved up the stair
d. place crutches on the stair and then move the affected leg to the stair


23. When a client experiences a severe anaphylactic reaction to a medication, your initial action is to:
a. start an IV 
b. assess vital signs

c. place the client in a supine position
d. prepare equipment for intubation


24. If a blood transfusion reaction occurs, the first intervention is to:
a. place the client in high-fowler’s position
b. call the physician
c. slow the rate of transfusion to “keep open” rate
d. shut off the transfusion


25. The correct action for instilling eye drops is to instill the drops:
a. at the outer canthus of the eye
b. over the conjunctiva
c. directly on the cornea
d. into the center of conjunctival sac


26. Assessing a client for hypovolemic shock, the sign that you would expect to note if this complication occurs is:
a. hypertension 
b. cyanosis

c. oliguria
d. tachypnea


27. When evaluating the client’s understanding of a low potassium diet, you will know he understands if he tells you that he will avoid:
a. pasta 
b. raw apples

c. dry cereal
d. french bread


28. Irrigating a nasogastric tube should be carried out using which one of the following protocols?
a. gently instill 20 cc normal saline and then withdraw solution
b. instill 30 cc sterile water and then withdraw solution
c. instill 30 cc sterile saline, forcefully if necessary, and allow fluid to flow into basin for return
d. gently instill 20 cc sterile water and then allow fluid to flow into basin for return


29. The morning of the second postoperative day, a female patient is to be ambulated. Your first intervention is to:
a. get her up in a chair
b. use a walker when getting her up
c. have her put minimal weight on the affected side
d. practice getting her out of bed by slightly flexing her lips


30. You are assigned a client who has just had a nasogastric tube inserted postoperatively. During your evaluation of his status, you will check for:
a. electrolyte imbalance
b. gastric distention

c. ulcerative colitis
d. infection

Tuesday, December 10, 2013

Historical Background of Nursing 1

This post pertains to the historical background of the nursing profession-on how nursing evolved from a mere responsibility of women before to an evolving discipline. From a being a job of slaves during the dzrk period in Europe to being a noble job today. 

The contemporary nursing is far different from nursing as it was practiced years ago, and it is expected to continue evolving during the 21st century. To comprehend present-day nursing and at the same time prepare for the future, one must understand not only past events but also contemporary nursing practice and the sociological and historical factors that affect it.

HISTORICAL PERSPECTIVES
Nursing has undergone dramatic change in response to societal needs and influences. A look at nursing's beginnings reveals its continuing struggle for autonomy and professionalization. In recent decades, a renewed interest in nursing history has produced a growing amount of related literature. This section highlights only selected aspects of events that have influenced nursing practice. Recurring themes of women's roles and status, religious (Christian) values, war, societal attitudes, and visionary nursing leadership have influenced nursing practice in the past. Many of these factors still exert their influence today.

Women's Roles
Traditional female roles of wife, mother, daughter, and sister have always included the care and nurturing of other family members. From the beginning of time, women have cared for infants and children; thus, nursing could be said to have, its roots in "the home." Additionally, women, who in general occupied a subservient and dependent role, were called on to care for others in the community who were ill. Generally, the care provided was related to physical maintenance and comfort. Thus, the traditional nursing role has always entailed humanistic caring, nurturing, comforting, and supporting.

Religion
Religion has also played a significant role in the development of nursing. Although many of the world's religions encourage benevolence, it was the Christian value of "love thy neighbor as thyself' and Christ's parable of the Good Samaritan that had a significant impact on the development of Western nursing. During the third and fourth centuries, several wealthy matrons of the Roman Empire, such as Fabiola, converted to Christianity and used their wealth to provide houses of care and healing (the forerunner of hospitals) for the poor, the sick, and the homeless. Women were not, however, the sole providers of nursing services.

The Crusades saw the formation of several orders of knights, including the Knights of Saint John of Jerusalem (also known as the Knights Hospitalers), the Teutonic Knights, and the Knights of Saint Lazarus . These brothers in arms provided nursing care to their sick and injured comrades. These orders also built hospitals, the organization and management of which set a standard for the administration of hospitals throughout Europe at that time. The Knights of Saint Lazarus dedicated themselves to the care of people with leprosy, syphilis, and chronic skin conditions.

The deaconess groups, which had their origins in the Roman Empire of the third and fourth centuries, were suppressed during the Middle Ages by the Western churches. However, these groups of nursing providers resurfaced occasionally throughout the centuries, most notably in 1836 when Theodore Fliedner reinstituted
the Order of Deaconesses and opened a small hospital and training school in Kaiserswerth, Germany. Florence Nightingale received her "training" in nursing at the Kaiserswerth School.

Early religious values, such as self-denial, spiritual calling, and devotion to duty and hard work, have dominated nursing throughout its history. Nurses' commitment to these values often resulted in exploitation and few monetary rewards. For some time, nurses themselves believed it was inappropriate to
expect economic gain from their "calling."

War
Throughout history, wars have accentuated the need for nurses. During the Crimean War (1854-1856), the inadequacy of care given to soldiers led to a public outcry in Great Britain. The role Florence Nightingale played in addressing this problem is well known. She was asked by Sir Sidney Herbert of the British War
Department to recruit a contingent of female nurses to provide care to the sick and injured in the Crimea. Nightingale and her nurses transformed the military hospitals by setting up sanitation practices, such as hand washing and washing clothing regularly. Nightingale is credited with performing miracles; the mortality rate in the Barrack Hospital in Turkey, for example, was reduced from 42% to 2%..

During the American Civil War (1861-1865), several nurses emerged who were notable for their contributions to a country torn by internal strife. Harriet Tubman and Sojourner Truth  provided care and safety to slaves fleeing to the North on the Underground Railroad. Mother Biekerdyke and Clara Barton searched the battlefields and gave care to injured and dying soldiers. Noted authors Walt Whitman and Louisa May Alcott volunteered as nurses to give care to injured soldiers in military hospitals. Another woman leader who provided nursing care during the Civil War was Dorothea Dix . She became the Union's Superintendent of Female Nurses responsible for recruiting nurses and supervising the nursing care of all women nurses working in the army hospitals.

The arrival of World War I resulted in American, British, and French women rushing to volunteer their nursing services. These nurses endured harsh environments and treated injuries not seen before. *A monument, entitled "The Spirit of Nursing," stands in Arlington National Cemetery . It honors the nurses who served in the U.S. Armed Services in World War I, many of whom are buried in Section 21 which is also called the "Nurses Section" (Military District of Washington, n.d.). Progress in health care occurred during World War I, particularly in the field of surgery. For example, there were advancements in the use of
anesthetic agents, infection control, blood typing, and prosthetics.

World War II casualties created an acute shortage of caregivers, and the Cadet Nurse Corps was established in response to a marked shortage of nurses (Figure 1-6 •). Also at that time, auxiliary health care workers became prominent. "Practical" nurses, aides, and technicians provided much of the actual nursing
care under the instruction and supervision of better prepared nurses. Medical specialties also arose at that time to meet the needs of hospitalized clients.

During the Vietnam War, approximately 90% of the 11,000 American military women stationed in Vietnam were nurses. Most of them volunteered to go to Vietnam right after they graduated from nursing school. This made them the youngest group of medical personnel ever to serve in wartime (Vietnam Women's Memorial Foundation, n.d.). Near the Vietnam Veterans Memorial ("The Wall") stands the Vietnam Women's Memorial . This monument was established to "honor the women who served and also for the families who
lost loved ones during the war . . . to let them know about the women who provided comfort, care and a human touch for those who were suffering and dying" (Vietnam Women's Memorial Foundation, n.d.).

Societal Attitudes
Society's attitudes about nurses and nursing have significantly influenced professional nursing.

Before the mid-1800s, nursing was without organization, education, or social status; the prevailing attitude was that a woman's place was in the home and that no respectable woman should have a career. The role for the Victorian middle-class woman was that of wife and mother, and any education she obtained was for the purpose of making her a pleasant companion to her husband and a responsible mother to her children. Nurses in hospitals during this period were poorly educated; some were even incarcerated criminals. Society's attitudes about nursing during this period are reflected in the writings of Charles Dickens. In his book Martin Chuzzlewit (1896), Dickens reflected his attitude toward nurses through his character Sairy Gamp. She "cared" for the sick by neglecting them, stealing from them, and physically abusing them (Donahue, 1996, p. 192). This literary portrayal of nurses greatly influenced the negative image and attitude toward nurses up to contemporary times.

In contrast, the guardian angel or angel of mercy image arose in the latter part of the 19th century, largely because of the work of Florence Nightingale during the Crimean War. After Nightingale brought respectability to the nursing profession, nurses were viewed as noble, compassionate, moral, religious, dedicated, and self-sacrificing.

Another image arising in the early 19th century that has affected subsequent generations of nurses and the public and other professionals working with nurses is the image of doctor's handmaiden. This image evolved when women had yet to obtain the right to vote, when family structures were largely paternalistic, and when the medical profession portrayed increasing use of scientific knowledge that, at that time, was viewed as a male domain. Since that time, several images of nursing have been portrayed. The heroine portrayal evolved
from nurses' acts of bravery in World War II and their contributions in fighting poliomyelitis—in particular, the work of the Australian nurse Elizabeth Kenney. Other, images in the late 1900s include the nurse as sex object, surrogate mother, tyrannical mother, and body expert.

During the past few decades, the nursing profession has taken steps to improve the image of the nurse. In the early 1990s, the Tri-Council for Nursing (the American Association of Colleges of Nursing, the American Nurses Association, the American Organization of Nurse Executives, and the National League for Nursing) initiated a national effort (titled "Nurses of America") to improve the image of nursing. More recently, the
Johnson & Johnson corporation contributed $20 million in 2002 to launch a "Campaign for Nursing's Future" to promote nursing as a positive career choice (Anonymous, 2003; Fitzpatrick, 2002). In addition, nursing schools and hospitals are targeting men in their recruitment efforts (Meyers, 2003).


Success is most often achieved by those who don't know that failure is inevitable. 
- Coco Chanel

Tuesday, September 17, 2013

Nursing Leader: Linda Richards

This is a series of post regarding notable nursing leaders who have given many contribution to nursing and their influence uplifted the nursing profession.


Nursing Leaders
Florence Nightingale, Clara Barton, Lillian Wald, Lavinia Dock, Margaret Sanger, and Mary Breckinridge are among the leaders who have made notable contributions both to nursing's history and to women's history. These women were all politically astute pioneers. Their skills at influencing others and bringing about change remain models for political nurse activists today. Contemporary nursing leaders, such as Virginia Henderson, who created a modern worldwide definition of nursing, and Martha Rogers, a catalyst for theory  development.

Richards (1841-1930)
Linda Richards  was America's first trained nurse. She graduated from the New England Hospital for Women and Children in 1873. Richards is known for introducing nurse's notes and doctor's orders. She also initiated the practice of nurses wearing uniforms (American Nurses Association, 2006a). She is credited for her pioneer work in psychiatric and industrial nursing

Born: Linda Richards was born on July 27, 1841, the youngest daughter of Sanford Richards, an itinerant preacher, and his wife, Betsy Sinclair Richards.

After ten years as a schoolteacher, began working as a nurse at Boston City Hospital in 1870. She enrolled for training in 1872 at the New England Hospital for Women and Children, run by female physicians, for a one-year course based on the principles established by Florence Nightingale. Linda received her diploma on September 1, 1873, and went to work as night supervisor at Bellevue Hospital in New York.

After attending Florence Nightingale's training school at St. Thomas Hospital in England in 1877, became superintendent of a new training school at Boston City Hospital, which officially opened in 1878.

Worked in Japan for five years beginning in 1886 to start a training school for nurses. Back in the United States, worked as a visiting nurse and helped train nurses to work with the mentally ill.

She retired in 1911 at age 70 when she wrote her autobiography, Reminiscences of Linda Richards. She suffered a severe stroke in 1923 and lived the remainder of her life at the New England Hospital for Women and Children where she had done her first training. She died on April 16, 1930 in Boston.