Case #1
A 24-year old female automotive technician presents herself at the doctor’s office. She complains of fever and of pain in her left hand. On physical examination, the patient had a deep wound on her left palm that was oozing pus. She had purplish, red streaks running up her left arm. She had enlarged lymph nodes at the elbow and under her arm. The patient’s skin was warm and dry. In her history, the patient had punctured her left palm with sharp metal from the undercarriage of a"real cherry" 1977 Malibu about a week earlier. She said the wound had bled for a few minutes and she thought that she had washed it "real good" with soap and water. She had covered the wound with a large "band-aid" and gone back to work. She developed a fever about three days later. For the past couple of days, she "did not feel so good" and had vomiting and diarrhea
1.
The bacteria that caused the infections is:
| a. |
a gram-negative rod. |
|
| b. |
acid-fast. |
|
| c. |
an endospore former. |
|
| d. |
a gram-positive coccus. |
2.
From complaint and physical examination, which of the symptoms lead you to your choice ofagent?
| a. |
the warm dry skin |
|
| b. |
the fever, wound with oozing pus and enlarged lymph nodes |
|
| c. |
the fever and pain in the hand |
|
| d. |
the pain, red streaks and enlarged lymph nodes |
|
| e. |
the lymph nodes and red streaks |
3.
The most important preventive measure to prevent the spread of this bacteria is:
| a. |
administering the vaccine for the bacteria. |
|
| b. |
hand-washing. |
|
| c. |
surgical removal. |
|
| d. |
administering penicillin to the patient. |
4.
clinical isolate of the wound is sent to the microbiology lab. Which medium would be inoculated to identify of the bacteria causing the infection?
| a. |
Eosin-Methylene Blue |
|
| b. |
Sheep Blood Agar |
|
| c. |
MacConkey's Agar |
|
| d. |
Mannitol Salt Agar |
|
| e. |
Nutrient Agar |
5.
The medium used to identify the bacteria causing the infection is:
| a. |
assay and enumeration. |
|
| b. |
selective and differential. |
|
| c. |
general and complex. |
|
| d. |
enriched and transfer. |
6.
causative agent of infection is capable of causing disease in the _______________ system.
| a. |
integumentary |
|
| b. |
lymphatic |
|
| c. |
cardiovascular |
|
| d. |
all of the choices are correct |
|
| e. |
nervous |
7.
Pathogenic strains of the causative agent of the infection produce an enzyme called:
| a. |
all of the choices are correct. |
|
| b. |
penicillinase. |
|
| c. |
coagulase. |
|
| d. |
hyaluronidase. |
|
| e. |
enterotoxins. |
8.
What type of infection do you believe she has in this hand?
| a. |
Staphylococcus aureus |
|
| b. |
Pasteurella multocida |
|
| c. |
Pseudomonase |
|
| d. |
Clostridium |
|
| e. |
Streptococcus pyogenes |
9.
From the history, which of the information confirmed your choice?
| a. |
The wound was cleaned with soap and water. |
|
| b. |
She had diarrhea and vomiting |
|
| c. |
The cut was from a rusting car frame. |
|
| d. |
The wound had been covered and had perhaps become anaerobic. |
|
| e. |
The wound had bled for a while. |
10.
Which of the following is most likely to follow this infection?
| a. |
neurological disfunction of the hand |
|
| b. |
arthritis |
|
| c. |
gangrene and amputation |
|
| d. |
toxic shock syndrome |
In: Biology
Diagnostic tests of medical conditions can have several results. 1) The patient has the condition and the test is positive (+) 2) The patient has the condition and the test is negative (-) – Known as “false negative” 3) The patient doesn’t have the condition and the test is negative (-) 4) The patient doesn’t have the condition and the test is positive (+) – Known as “false positive” Consider the following: Enzyme immunoassay (EIA) tests are used to screen blood specimens for the presence of antibodies to HIV, the virus that causes AIDS. Antibodies indicate the presence of the virus. The test is quite accurate but is not always correct. Suppose that 1% of a large population carries antibodies to HIV in their blood. Of those that carry the HIV antibodies in their blood, 99.85% will have a positive test result and 0.15% will have a false-negative test result. Of those that do not carry the HIV antibodies in their blood, 99.4% will have a negative test result and 0.60% will have a false-positive test result. Draw a tree diagram for selecting a person from this population and testing his or her blood. Take a look in the example on page 398 of the class text book for an example of a tree diagram. b) Construct a probability table that shows the probabilities for individuals in this population with respect to the presence of antibodies and test results. Take a look in the example on page 394 of the class text book for an example of a probability table. c) What is the probability the EIA is positive for a randomly chosen person from this population? d) In words, define the sensitivity of a test like this. Define the sensitivity in the context of this test using conditional probability notation. Calculate the sensitivity of this test? (you may need to look up what this term means for this context) Take a look at the last equation/calculation in the right hand column of the example on page 398 of the class textbook for an example of the conditional probability notation. e) In words, define the specificity of a test like this. Define specificity in the context of this test using conditional probability notation. Calculate the specificity of this test? (you may need to look up what this term means for this context) Take a look at the last equation/calculation in the right hand column of the example on page 398 of the class textbook for an example of the conditional probability notation. f) In words, define the positive predictive value of a test like this. Define positive predictive value in the contest of this test using conditional probability notation. Calculate the positive predictive value of this test? (you may need to look up what this term means) Take a look at the last equation/calculation in the right hand column of the example on page 398 of the class textbook for an example of the conditional probability notation. g) In words, define the negative predictive value of a test like this. Define negative predictive value in the context of this test using conditional probability notation. Calculate the negative predictive value of this test? (you may need to look up what this term means) Take a look at the last equation/calculation in the right hand column of the example on page 398 of the class textbook for an example of the conditional probability notation.
In: Statistics and Probability
In: Biology
A retired 81-year old man with metastatic colon cancer was admitted to an acute care hospital with pneumonia and congestive heart failure (CHF). After his acute hospitalization, he was transferred to a skilled nursing unit to complete antibiotic therapy. Cancer chemotherapy was scheduled to begin after discharge. Three days after transfer to the skilled nursing unit, the patient complained of nausea. Intravenous ondansetron (Zofran) was ordered. Approximately one hour after the first dose of ondansetron, he was found unresponsive and in respiratory distress. Stat labs were ordered, and his blood glucose was 23 mg/dL. The patient had no history of diabetes or hypoglycemia. He was given glucagon and transferred to the intensive care unit. Laboratory studies showed an insulin level of greater than 1500 micro-units/mL (upper end of the reference range: 17 micro-units/mL). Intravenous glucose and glucagon were continued, and his blood glucose stayed in the low 40 mg/dL range for several days. Ultimately, he was discharged without any permanent disability from the event, but he was in a weakened state and his chemotherapy was delayed. The incident led to an internal review of the case. In this skilled nursing unit, many of the nurses remove medications from the Pyxis machine (an automated dispensing device) and insulin from the refrigerator and place them in portable medication carts that are then taken to the bedside. The nurse who was caring for the patient the night of the first ondansetron dose worked infrequently and had an especially heavy workload that evening (she was caring for nine patients on her shift). When her portable medication cart was inspected, ondansetron and insulin vials were found to be next to each other. It was presumed that she mistakenly administered insulin instead of ondansetron.
What factors (human, work load, and environment) contributed to this error?
What recommendations can you make to prevent this type of error in the future?
In: Nursing
The Unhappy Supervisor
Miss Joan Santos, a computer programmer in Mannadel Corporation for more than six years now, was discussing her salary situation with Mr. Roderick Santiago, her manager. Miss Joan was unhappy because she did not receive any salary increase last salary evaluation, while some employees who were recently hired got an increase from ten to fifteen percent.
Miss Joan's performance has been considered very satisfactory for the last five years and previous to this she got very substantial increases in salary due to the important programs that she made for the corporation related to accounting and personnel matters. She made a lot of improvements in the purchasing systems and systematized inventory records in materials management.
The management had recently started a comprehensive
job evaluation program and some positions are aligned within the
salary grade approved by the management committee, where Mr.
Roderick Santiago is also a member. Mr. Santiago explained to Joan
has her salary was already way above the salary grade for the
position evaluated and allocated in the salary plan; hence, she
will not get any increase at the moment until the salary range can
catch up to her level in the salary plan. Mr. Santiago also
explained that she is the most senior among the programmers and
that instead of cutting her salary back to the job range, they are
considering her for an incentive bonus, which is not as substantial
as that of her co-worker’s in the department who are new in the
positions.
Miss Joan is not satisfied with the program explained by Mr.
Santiago. The whole night she planned to file a leave of absence
despite the many rush programs assigned to her.
QUESTIONS
1. How are you going to solve this case? And what are
your suggestions based in the case study.
2. What will you do if your are Human Resource manager regarding
this case?
In: Finance
#2 Based on what you saw in the video, which theory of management would you say is practiced here at Caffeine & Crullers?
A) scientific management, which uses scientific data to improve efficiency and productivity
B) bureaucratic organization, which emphasizes the adherence to rules and regulations
C) human resources perspective, which promotes motivation through job design
D) systems thinking, which seeks to coordinate the efforts of all subparts in a way that creates synergy, or maximum performance
See below the script of the video
>> Carlos thinks ambushing me will get him a raise. I cannot let him flap my jacks. >> I thought Jane knew better. She's got her MBA from Wisconsin. Okay, so it's one of the lesser campuses, but still, she thinks she can pull the hyper on me? On me. >> You know how the market is, Carlos. You're in finance. >> But little Carrie's making $10,000 more than me? I've been with C and C for 12 years. >> You more than anyone know that we can't afford to give everyone big raises. >> Don't you care? >> I've been round and square with Edmund. You know how he is. >> If you have to hire someone to replace me, it's going to cost you a lot more than 10,000. >> Are you threatening me? >> Jim Hunniman would know how to fix this. >> You had better decaffeinate, Carlos, and go figure out how to reconcile that increased line item in your budget. >> Heather's not happy either. >> Then make a complaint out for your phone now. >> She's going to give you study after study about pay and motivation. Oh, and she'll cry. >> You two can line up your experts to poke holes in my donut, but that does not change anything. >> Are you afraid to talk to her? >> Of course not.
In: Finance
Create: A systems approach to the reduction of medication error on the hospital
Here is an example:
A systems approach to the reduction of medication error on the hospital ward Aims. To discuss a potentially powerful approach to safer medication administration on the hospital ward, based on principles of safety developed in other high-risk industries, and consistent with recent national reports on safety in health care released in the United Kingdom (UK) and United States of America (USA). To discuss why punitive approaches to safety on the hospital ward and in the nursing literature do not work. Background. Drug administration error on the hospital ward is an ever-present problem and its occurrence is too frequent. Administering medication is probably the highest-risk task a nurse can perform, and accidents can lead to devastating consequences for the patient and for the nurse’s career. Drug errors in nursing are often dealt with by unsystematic, punitive, and ineffective means, with little knowledge of the factors influencing error generation. Typically, individual nurses are simply blamed for their carelessness. By focusing on the individual, the complete set of contributing factors cannot be known. Instead, vain attempts will be made to change human behaviour – one of the most change-resistant aspects of any system. A punitive, person-centred approach therefore, severely hampers effective improvements in safety. By contrast, in other high-risk industries, such as aviation and nuclear power, the systems-centred approach to error reduction is routine. Conclusions. Accidents or errors are only the tip of the incident iceberg. Through effective, nonpunitive incident reporting, which includes reports of near-misses and system problems in addition to actual accidents, the systems-approach allows the complete set of contributing factors underlying an accident to be understood and addressed. Feedback to participants and targeted improvement in the workplace is also important to demonstrate that incident data are being used appropriately, and to maintain high levels of on-going reporting and enthusiasm for the scheme. Drug administration error is a serious problem, which warrants a well-reasoned approach to its improvement
In: Nursing
Identifying how renal arterioles affect GFR
Complete the following table that describes how changes in the diameters of these resistance vessels affect glomerular hydrostatic pressure and GFR (assuming no change in renal arterial pressure) with no change, increase, or decrease.
|
Afferent Arteriole |
Efferent Arteriole |
Glomerular Hydrostatic Pressure and Filtration Rate |
|
No change |
No change |
Normal |
|
Constricts |
No change |
|
|
No change |
Constricts |
|
|
Dilates |
No change |
|
|
Dilates |
Constricts |
How renal arterioles respond to changes in blood pressure
Changes in mean arterial pressure (MAP) can lead to wide changes in systemic pressure, including the renal arteries. Use your understanding of the renal mechanisms identified in part and your understanding of cardiovascular physiology and blood pressure to answer the following questions.
1. In the human body, if MAP is between 80 and 160mmHg, would GFR be expected to change as MAP changes? Explain your answer, including in your answer the afferent arteriolar response, what stimulates it to do so (2 stimuli), and the purpose of this response.
2. What would happen to GFR if MAP rises above 160mmHg? Explain your answer, including in your answer what each arteriole does, what stimulates their responses, and the purpose of their responses.
3. What would happen to GFR if MAP falls below 80mmHg? Explain your answer, including in your answer what each arteriole does, what stimulates their responses, and the purpose of their responses.
In: Physics
Product Placement
Businesses are always looking for ways to expose markets to their products. One very interesting method of doing this is product placement. Instead of running traditional commercials during TV shows, companies and TV/film producers will strategically place a company's products in a TV show, movie, or any number of other contexts that will be viewed by large audiences. Many companies have even been using product placement in video games.
One of the earlier examples of product placement comes from a personal childhood favorite, ET (1982). In the movie, a human character uses Reese's Pieces to lure ET from his hiding place. What many people don't know, however, was that the filmmakers originally wanted to use M&Ms. They approached Mars, Inc., maker of M&Ms, about a deal to tie in their product with the movie, but Mars passed. The filmmakers then approached Hershey Foods Corp. with the offer to tie in their product (Reese's Pieces). The movie turned out to be a hit, and sales of Reese's Pieces shot up.
Your assignment is to look around for examples of product placement, and then report back here with what you find. You won't have to look very hard, just pay close attention during your favorite TV shows or movies. Whenever you see a brand name, you've found product placement. Keep a pen and paper nearby to record the instances you see and how effective you think they are. Then, answer the following questions:
In: Operations Management
Economics Assessment: Social Responsibility
On July 24, 2009, the federal minimum wage rose to $7.25 per hour for most occupations in the private sector. While many states and cities have set their own minimum wage above this federal level, and 18 states raised their minimum wage on January 1, 2018, the federal minimum wage has remained at $7.25 per hour. Over the past several years, support for an increase in the federal minimum wage has come from a wide variety of sources. Many of those who support an increase in the minimum wage believe this is one way the government should exercise its social responsibility in an attempt to reduce poverty. The following items address the idea of raising the minimum wage from the current federal minimum of $7.25 per hour.
1) Minimum wage is a price floor, so discuss an increase in the minimum wage from a supply and demand standpoint, making sure to address the concept of surplus with respect to the quantity of labor supplied and the quantity of labor demanded that is generated by this price floor.
2) What will be the impact on the prices of the products produced by workers working at or near the minimum wage level, and how will this affect overall consumer purchasing?
3) Discuss any potential changes in the incentives for low-skilled workers to increase their human capital, and for employers to substitute capital inputs (technology and automation) for labor.
4) What might be the impact on government spending on entitlements such as welfare, food stamps, and unemployment compensation in light of the fact that changes in the minimum wage can create changes in unemployment and underemployment?
Based on your responses, do you believe that the minimum wage should be raised, lowered, remain as it currently is, or be altogether eliminated? Explain your answer, and make sure to address any social responsibility the government should have regarding the well-being of its citizens with respect to the setting of wages in the private sector.
In: Economics