Question on visual neglect.   

In visual neglet, a person is unable to process and perceive stimuli on the one side of the body( and from one side of the environment).

Question: what evidence is there that this is a perceptual problem and is not due to a lack of sensation on one side of the body?

3. What are the blood vessels of the body? Give brief details about ONE type. Give only the essential information.

1. Briefly discuss the layers, chambers, valves, vasculature, and the conduction system of the heart.

Questions Respiratory I

Complete the following table.

Could someone please assist me with the following?

1. in Dementias, Including Alzheimer's Disease Briefly describe the problem indicating the “burden of disease” including morbidity and mortality and changes that have occurred in recent years.

2. Briefly describe the course of the disease or condition using the concepts of incidence, prevalence and case-fatality. If these concepts are not relevant to your subject explain what they mean and why they are not relevant.

3. Identify at least two at-risk groups (those with an increased probability of developing and/or experiencing bad outcomes). Explain why these groups are at-risk of experiencing this health issue. Be sure to connect your discussion to the key categories of social determinants of health as outlined in the text.

4. Identify 5- 8 options for potential interventions to address the problem. For each of the options identify the primary focus in terms of When (Primary, secondary or tertiary prevention), Who (individual, at-risk group, population) and How (education, motivation, obligation, invention). Number each of the potential interventions. Identify each option then bullet or create a table giving your answers to When, Who and How for each option.

Complete the following table.

On May 31st 2019, Mr W Van Rensburg, a twenty year old male first year student visited the Optometry Clinic at the University of Pretoria Medical School campus. He complained of headaches and blurred vision. He found reading in preparation for his upcoming exams difficult. He could not recall the exact time these symptoms started appearing however, he did mention that he often suffered with these symptoms when trying to study from a young age. When questioned about his ocular history, he said he had never visited an eye clinic before, but has often complained about only being able to see things clearly that were seen from a distance. When asked whether he has ever been diagnosed of diabetes, asthma or hypertension, he said no. Previous treatment of his symptoms only included eye-drops which proved ineffective.

1. If you were treating Mr Marie, with what condition would you diagnose him and why? (1 mark)

2. What has resulted in Mr Marie experiencing this condition (i.e. what causes this condition) and how does this differ from a person with perfect vision who does not experience these vision problems?

3. The use of what would correct Mr Marie’s vision problem, and what are his two options for treatment? (1 mark)

Questions Respiratory II

Please explain the pH scale. Be sure to include acid, base, and neutral as well as hydroxide and hydrogen ion concentrations.

____ 28. Which of the following drugs does NOT directly affect the nervous system?
a. caffeine
b. antibiotic
c. cocaine
____ 29. A doctor injects a patient that has been infected with hepatitis A with hepatitis A antibodies, thereby giving the
patient _____ immunity.
a. active
b. non-specific
c. passive
____ 30. Which of the following is always an effect of external respiration?
a. an increase in carbon dioxide levels in the blood
b. a decrease in carbon dioxide levels in the blood
c. a decrease in the oxygen levels in the blood
____ 31. Epithelial cells are similar to the shingles of a roof in that they are both flat and overlap. How does this
structure aid in their function?
a. It allows the individual cells to shed more easily.
b. It allows the whole structure of the skin to be lightweight.
c. It allows them to form a barrier to the outside.
____ 32. Which of the following describes functions of the peripheral nervous system?
a. integrates perception, movement, and intellect
b. transmits external stimuli and motor responses
c. regulates body temperature, thirst, and appetite
____ 33. During which phase do the cells of the follicle develop into the corpus luteum?
a. luteal phase
b. follicular phase
c. flow phase
____ 34. _______ receive the signals called impulses from other neurons and conduct the impulses to the cell body.
a. Axons
b. Dendrites
c. Neurons
____ 35. A 15 year-old would be in the major phase of development called
a. adulthood
b. adolescence
c. childhood
____ 36. Vomiting is often accompanied by a burning sensation in the throat. What is the most likely cause of this?
a. acid from the stomach
b. amylase in the mouth
c. peristalsis in the small intestine

This is a two-system chapter.

Decide on either the nervous system or the endocrine system for your report.

Write about some disease or condition that is new to you and add some personal comments.

1. Submit your report

2. Participate in the Discussion

Raymond Harrison, a 64 year old male, was admitted to the hospital with fever (101.8 F), shaking chills, a nonproductive cough, and chest pains. A chest X-ray revealed extensive accumulation of fluid in both lungs. The patient had mild hypertension (high blood pressure) of 150/90 (normal would be 120/80) and a smoking history of 275 packs per year. The patient was cyanotic (looked blue) and in respiratory distress. The patient's heart rate was elevated at 100 beats per min (normal would be 60-80 ppm).

An arterial blood gas test was performed, and the oxygen saturation of the atrial blood was 72% (normal would be 90-100%). The blood test also revealed an elevated white blood cell count. Initial treatment consisted of antibiotics and bronchodilators.

1. An atrial "blood gas test" was performed to measure oxygen levels. Explain why the blood was taken from an artery and not a vein.
2. In the blood gas test, the oxygen measurement is reported as saturation. How is the oxygen carried in the blood, and what exactly is being saturated with oxygen.
3. Why does this patient have low oxygen saturation? What is preventing him from having saturation in the normal range?
4. How does the abnormal oxygen saturation value relate to the patient's cyanotic (blue) appearance?
5. How does the abnormal oxygen saturation value related to the patient's elevated heart rate?