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University of Houston - HLT 4317 Final exam / HLT 4317 FINAL complete latest questions and answers, already graded A.

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HLT 4317 FINAL QUESTION 1 1. Which of the following is true about the honor code and academic honesty for this exam? a. You can use another person, members of your study group, or othe... rs in the computer lab to complete this exam. You can share, disseminate, communicate or discuss the examination questions or your responses to anyone at any time. You can record any aspects of the exam (such as screen shots, photos, video, written notes, or spoken word). b. You cannot use another person, members of your study group, or others in the computer lab to complete this exam. You cannot share, disseminate, communicate or discuss the examination questions or your responses to anyone at any time. You may NOT record any aspects of the exam (such as screen shots, photos, video, written notes, or spoken word. 0.01 points QUESTION 2 1. True or False? Herd immunity refers to protection of a population against an infectious disease when a large proportion of individuals are immune through either vaccinations or past infections. True False 3.03 points QUESTION 3 1. True or False? If a disease is fatal, virulence can be measured by the case fatality rate. True False 3.03 points QUESTION 4 1. True or False? Lyme disease is an example of a disease transmitted by arthropod vectors. True False 3.03 points QUESTION 5 1. True or False? Reasons for the resurgence of tuberculosis include the increasing prevalence of HIV infection. True False 3.03 points QUESTION 6 1. True or False? Reliability refers to the ability of a measuring instrument to give consistent results on repeated trials, regardless of its accuracy. True False 3.03 points QUESTION 7 1. True or False? Sexually transmitted diseases, influenza, and acute respiratory infections are examples of conditions transmitted directly (person-to-person). True False 3.03 points QUESTION 8 **** 1. True or False? The case fatality rate is the same thing as the mortality rate for a disease. True False 3.03 points QUESTION 9 1. True or False? The presence of an infectious agent is a sufficient cause for outbreaks of infectious disease to occur. True False 3.03 points QUESTION 10 1. True or False? Validity is the ability of a measuring instrument to give a true measure. True False 3.03 points QUESTION 11 1. True or False? When an individual comes into contact with a piece of clothing that subsequently infects him or her that piece of clothing is a fomite and the infection is direct. True False 3.03 points QUESTION 12 1. A new screening test for Lyme disease is developed for use in the general population. The sensitivity and specificity of the new test are 60% and 70%, respectively. Three hundred people are screened at a clinic during the first year the new test is implemented. Assume the true prevalence of Lyme disease among clinic attendees is 10%. Calculate the following value The predictive value of a positive test is: A. 94.0% B. 22.2% C. 6.0% D. 18.2% E. 33.0% 3.03 points QUESTION 13 1. A person with an inapparent infection: A. is a danger to family members but not to others in the community B. is of no epidemiologic importance C. never develops antibodies D. can transmit the infection to others 3.03 points QUESTION 14 (LOOK AT PAGE 479/480) 1. A screening examination was performed on 250 persons for Factor X, which is found in disease Y. A definitive diagnosis for disease Y among the 250 persons had been obtained previously. The results are charted below: The sensitivity of this test is expressed as: A. 30% B. 56% C. 80% D. 7% E. 70% 3.03 points QUESTION 15 (LOOK AT 479/480) 1. A screening examination was performed on 250 persons for Factor X, which is found in disease Y. A definitive diagnosis for disease Y among the 250 persons had been obtained previously. The results are charted below: The specificity of this test is expressed as: A. 30% B. 56% C. 70% D. 80% E. 7% 3.03 points QUESTION 16 ***** 1. An important point about the agent-host-environment model (the epidemiologic triangle) of epidemiologic investigation is that: A. in order to prove causality, which is a difficult task, the researcher must prove that the agent, host and environmental factors under investigation are both necessary and sufficient to cause the disease being studied. B. diseases are multi-causal. C. the agent is not as important a factor in disease causality as the host or the environment. D. it is necessary that the agent be linked to both the host and the environment and that the agent is present in every case of the disease. 3.03 points QUESTION 17 1. An outbreak of salmonellosis occurred after an epidemiology department luncheon, which was attended by 485 faculty and staff. Assume everyone ate the same food items. Sixty-five people had fever and diarrhea, five of these people were severely affected. Subsequent laboratory tests on everyone who attended the luncheon revealed an additional 72 cases. The attack rate of salmonellosis was: A. 28.2% B. 7.7% C. 47.4% D. 3.6% E. 13.4% 3.03 points QUESTION 18 1. Asbestos exposure has been associated with: A. vinyl chloride B. pesticides from the organochloride family C. metallic compounds D. asbestosis, malignant mesothelioma, and lung cancer 3.03 points QUESTION 19 1. Drs. Poke and Jab (2014) conducted an employee health program that used 5 screening tests at the same time to detect diseases among workers. Which type of program is this? A. Selective screening B. Mass screening C. Ad hoc screening D. Multiphasic screening 3.03 points QUESTION 20 1. Host factors in the causation of disease include: A. temperature and humidity B. chemicals in the air, water, or food C. genetic factors D. altitude E. all of the above 3.03 points QUESTION 21 1. Personal behavior and lifestyle factors in health do not include: A. lack of exercise B. alcohol consumption C. social support D. dietary practices 3.03 points QUESTION 22 1. Social epidemiology deals with the health effects of: A. socioeconomic stratification B. social networks C. discrimination D. work demands E. all of the above 3.03 points QUESTION 23 1. Sociocultural influences on health include: A. specific behaviors associated with daily living B. mediation of stress exposure C. health services utilization D. all of the above 3.03 points QUESTION 24 1. The Centers for Disease Control and Prevention published an article concerning the high rate of foot fungal disease in New Orleans. The article explains that there has been a high rate of foot fungal disease in New Orleans for decades. Foot fungal disease in New Orleans is best described as: A. pathogenic B. endemic C. epidemic D. incident 3.03 points QUESTION 25 1. The degree of agreement among several trained experts refers to: A. internal consistency B. repeated measures C. concurrent validity D. inter-judge reliability E. both A and C 3.03 points QUESTION 26 1. The healthy worker effect refers to the observation that: A. exercise on the job causes workers to become healthy and gain years of life. B. healthy persons are more likely to gain employment than unhealthy persons. C. unemployed persons tend to have lower mortality than employed persons. D. all of the above 3.03 points QUESTION 27 1. The lowest dose at which a particular response may occur: A. Threshold B. Latency C. Synergism D. none of the above 3.03 points QUESTION 28 1. The public health officer from Long Beach complains to you about the dreaded Pacific Pox. The health officer says, 'If people catch the Pox, they suddenly get the urge to dance in the sand and fall dead on the beach within the hour.' There are no survivors to interview so you deduce: A. the incidence rate of the Pox must be high. B. the prevalence of the Pox must be high. C. the infectivity of the Pox must be high. D. the case fatality rate of the Pox must be high. E. all of the above 3.03 points QUESTION 29 1. The table below shows the mumps experience of children in 390 families exposed to mumps by a primary case within the family: The secondary attack rate among children aged two to four years is: A. 50% B. 18% C. 60% D. 33% E. 20% 3.03 points QUESTION 30 1. What factors comprise the epidemiologic triangle? A. Agent B. Host C. Environment D. All of the above E. A and B only 3.03 points QUESTION 31 1. Which of the following conditions would not be likely to be considered a Western or way-of-life disease? A. Bacterial infections B. Gallbladder disease C. Obesity D. Diabetes E. Diverticular disease 3.03 points QUESTION 32 1. Which of the following examples involves indirect transmission of disease? A. Malaria B. Hepatitis caused by needle sticks C. HIV/AIDS D. Pneumoconiosis E. A and B 3.03 points QUESTION 33 1. With respect to a hypothetical rabies investigation conducted among veterinary workers (Dr. Spot, 2003), researchers found that rabies was almost always fatal. This finding refers to: A. antigenicity B. toxigenicity C. virulence D. infectivity 3.03 points QUESTION 34 1. We watched the movie And the Band Played On which was based on book written by Randy Shilts. Dr. Francis at the Centers for Disease Control and Prevention kept a total of cases and deaths from AIDS. In the film, this running tally was called the: a. Daily Double b. Butcher’s Bill c. Morbidity and mortality of AIDS d. B and C [Show More]

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