NR-436 Community, Public, and Population Health Nursing - Set 3 - Part 2

Correct Answer: Watching each dose supports completion and prevents drug resistance

Directly observed therapy exists because a partially treated case breeds resistant organisms that threaten the whole community. Watching each swallow keeps the regimen complete, which cures this client and protects everyone downstream from harder disease. Option a is incorrect because reimbursement paperwork plays no part in the decision to witness doses. Framing the visit as billing tells the client he is being processed rather than treated, and it misstates the purpose entirely. Option b is incorrect because employment status is irrelevant to therapy for a reportable airborne disease. Treatment continues regardless of a job, and tying the two together would frighten clients away from the clinic. Option d is incorrect because laboratory monitoring continues alongside witnessed dosing. Liver studies and vision checks track drug toxicity, a separate concern from whether the client actually swallowed the tablets.

Correct Answer: The portal of entry

PPE worn by the well person guards the doorway into that person. The respirator keeps droplet nuclei out of the nurse's own airway, so it blocks the portal of entry, while the client's mask blocks exit. Option a is incorrect because exit is what the client's surgical mask covers, trapping bacilli as they leave the airway during transport. The same equipment name maps to a different link depending on who is wearing it. Option b is incorrect because the reservoir here is the client's diseased lung, and only effective therapy empties it. A respirator strapped to the nurse's face leaves the organism exactly where it has been growing all along. Option c is incorrect because route level control means negative pressure, air changes and keeping the door closed, all of which handle the air between two people. A respirator acts at the last inch, where the nurse breathes.

Correct Answer: Report the case to the local health department

Reporting runs from the clinician to the local or state health department, which then forwards data nationally. The duty belongs to the nurse personally, so assuming somebody else will report it is not acceptable. Option a is incorrect because reports travel upward in steps, reaching national surveillance only after the state compiles them. A clinic that skips its own health department leaves the agency with legal authority over the case uninformed. Option c is incorrect because timeliness is part of the legal requirement, and some conditions must be phoned in immediately. Waiting for a colleague delays contact tracing and prophylaxis, which is the whole reason the report exists. Option d is incorrect because state law mandates the report and privacy rules expressly allow disclosure to public health without client authorisation. Seeking permission implies the client could refuse, which misstates the nurse's legal obligation.

Correct Answer: "I must get the client's consent before reporting the case."

Consent is not required. Reporting is a legal duty under state law, and privacy rules permit disclosure to public health authorities, so a nurse who waits for permission misunderstands the obligation. Option a is incorrect because each state does decide which conditions are legally reportable inside its borders, which is why lists differ across state lines. That statement is accurate and needs no correction. Option b is incorrect because urgent conditions such as suspected measles, botulism or anthrax are telephoned in at once, since control measures cannot wait for paperwork. The nurse has this timing rule right. Option c is incorrect because reported details remain protected health information, released only to those who need them to control the disease. Employers, schools and relatives have no claim on it, so this understanding is sound.

Correct Answer: A positive screen requires confirmatory testing

A screening result is not a diagnosis. Some positives are false, so the next step is a confirmatory test, along with support for the anxiety, cost and risk that follow up brings. Option b is incorrect because a screen sorts people into groups needing further work, never into the diagnosed and the healthy. Telling a client the question is settled would strip away the confirmatory step entirely. Option c is incorrect because missed cases do occur even with a strong test, and symptoms appearing later still deserve evaluation. Teaching someone to dismiss new complaints after a clear result is unsafe advice. Option d is incorrect because starting therapy on an unconfirmed result exposes people who were never ill to side effects and expense. That is the concrete harm a false positive causes when nobody verifies it.

Correct Answer: Administer both vaccines at this visit as scheduled

Mild illness with or without a low-grade fever is a false contraindication. Deferring these doses is one of the leading causes of missed opportunities, so both vaccines are given at separate sites today. Option a is incorrect because waiting for a perfectly well child pushes the series later and later. A runny nose with a low-grade temperature never blocks vaccination, and the next visit may not happen. Option b is incorrect because splitting the doses invents a restriction that does not exist. Several vaccines may be given at one visit at sites an inch apart, and that is preferred over any delay. Option d is incorrect because the standing screening tool already covers this situation. Stopping to seek an order treats a false precaution as real and adds a delay the child does not need.

Correct Answer: Weakened immune status of a resident

Host factors describe the living being in whom disease occurs, including age, nutrition, comorbidity and immune status. A resident whose immunity is weakened is the corner of the triangle that describes susceptibility. Option b is incorrect because ventilation is a physical feature of the setting rather than something inside a person. Air exchange belongs to the environment corner, where housing, climate and crowding shape how exposure happens. Option c is incorrect because the organism responsible for invading tissue is the agent, the factor whose presence is needed for illness. Naming the bacterium answers a different corner of the same model. Option d is incorrect because bunk spacing describes the surroundings the residents share, not a characteristic they carry. Crowding sits with social and physical conditions external to the person, so it fits environment instead.

Correct Answer: Risk of falls in one bedbound resident's apartment

A single resident's apartment is one person's situation, which belongs in an individual care plan. Community diagnoses name a group, draw on population data, and target conditions that affect everyone living there. Option a is incorrect because children in the complex form a defined aggregate and mold is a building condition. Both halves of the statement operate at population level, which is exactly what was wanted. Option c is incorrect because tenants as a body are the group at risk, and lighting is an environmental factor shared by all of them. Nothing here narrows the statement to one household. Option d is incorrect because teenagers are named as the affected aggregate and missing recreation space is a community characteristic. The wording follows the required format from beginning to end.

Correct Answer: Prevalence rose while incidence stayed flat

Longer survival keeps existing cases in the pool without adding new ones, so burden climbs while risk is unchanged. Prevalence reflects both how often disease starts and how long people live with it. Option a is incorrect because risk of acquiring a condition is read from new cases alone, and those have not moved. A steady stream of fresh diagnoses tells the nurse that exposure and susceptibility are stable. Option b is incorrect because the pool of living cases has grown rather than shrunk, so burden is heading upward. Only one of the two measures held still, and neither of them declined. Option c is incorrect because keeping clients alive longer is exactly what an effective therapy does. Reading a larger caseload as failure inverts the finding and would argue for withdrawing care that is working well.

Correct Answer: The web of causation

Chronic disease has no single agent, so epidemiology maps a network of interacting genetic, behavioural, social and economic strands. Each strand raises risk, none acts alone, and every one becomes a place to intervene. Option a is incorrect because that model organises a named organism, a susceptible person and the surroundings that link them. It suits a single agent infection, and diabetes has no organism to place in the agent corner. Option b is incorrect because stages of susceptibility, subclinical change, clinical illness and resolution describe how a condition unfolds over time in one person. That timeline says nothing about which factors combined to start it. Option d is incorrect because no one factor listed here is enough by itself to produce the disease. The profile shows many partial contributors acting together, which is precisely the pattern a single cause explanation cannot hold.

Correct Answer: The subclinical stage of disease

Pathologic change without symptoms defines the subclinical stage, running from the onset of tissue change to the first symptom. Screening works only because this detectable silent window exists, which makes secondary prevention possible. Option a is incorrect because susceptibility means risk factors are present while no pathologic change has started at all. Nothing exists to find there, so immunisation and education rather than screening are the fitting responses. Option b is incorrect because signs and symptoms have appeared by then and the condition is usually diagnosed on presentation. The stem states plainly that the client feels nothing, which rules that stage out. Option c is incorrect because resolution is the endpoint where recovery, disability, chronic illness or death has already settled. Care at that point aims at limiting damage and restoring function, far past any detection window.

Correct Answer: The subsystem for safety and transportation

Public transit routes, road condition, sidewalks, crosswalks, and police, fire, and emergency response all sit in safety and transportation. A missing bus line to the health department is a transportation finding first. Option a is incorrect because that subsystem inventories clinics, pharmacies, shelters, and their hours and cost. The health department itself would be listed there, but the route people take to reach it would not. Option c is incorrect because physical environment covers terrain, housing, air and water quality, waste, hazards, and green space. Sidewalks blur the line, yet the bus route belongs squarely with the movement of people. Option d is incorrect because politics and government examine officials, boards, voter turnout, and advocacy organizations. Deciding to fund a bus line is political, though the route's absence is recorded as a transport gap.

Correct Answer: Incidence before and after the campaign

Primary prevention aims to stop disease from starting, so success shows up as fewer new cases. Comparing incidence before the campaign with incidence afterward tests exactly what the programme set out to change. Option b is incorrect because a single day snapshot pools old and recent cases together, and duration alone can move it. A programme that prevented nothing could still show a shifting figure as people recover. Option c is incorrect because the share of deaths owed to each cause shifts whenever any other cause changes. That figure can rise or fall without a single person's risk moving in either direction. Option d is incorrect because severity once ill reflects treatment quality rather than whether fewer people are becoming ill. Better clinical care could lower it while the campaign to stop transmission accomplished nothing.

Correct Answer: A negative HIV test is required before the first dose

Pre-exposure prophylaxis is started only after HIV is ruled out, because giving these drugs to someone already infected selects for resistance. Testing then continues on a routine schedule for as long as the client stays on it. Option a is incorrect because these antiretrovirals act on one virus only. Syphilis, gonorrhoea, and chlamydia pass just as easily as before, so condom counselling continues alongside the prescription. Option b is incorrect because protection builds over days rather than arriving with the first tablet. Roughly a week of daily dosing is needed for receptive anal exposure and about three weeks for other routes. Option d is incorrect because routine repeat testing is built into the programme. Breakthrough infection must be caught quickly so the client can move to full treatment before resistance develops on two drugs.

Correct Answer: "Feeling well means the germs are gone and I can stop."

Symptoms fade long before the organisms are cleared, which is the trap in tuberculosis therapy. Stopping at this point leaves surviving bacilli that regrow, and the ones that regrow are the ones the drugs did not kill. Option a is incorrect because continuing until the clinic ends the regimen is exactly right. A full course runs about six months, and finishing it is what cures the client and prevents resistant strains from emerging. Option c is incorrect because orange staining of urine, sweat, and tears is an expected rifampin effect. Recognising it as harmless shows good understanding, and clients who are not warned often quit the drug over it. Option d is incorrect because ethambutol can injure the optic nerve, so any blurring or colour change goes to the provider at once. Promising to report vision problems reflects sound teaching, not a gap in it.

Correct Answer: High case fatality, low cause specific mortality

Case fatality divides deaths by people who have the disease and measures severity, while cause specific mortality divides by the whole population. A ferociously deadly but rare infection scores high on one and low on the other. Option b is incorrect because that pair describes how often a condition arises and how many people carry it, saying nothing about death. Frequency of illness and lethality once ill are separate axes altogether. Option c is incorrect because those two properties belong to a diagnostic or screening test, describing how well it sorts sick from well. Test performance has no bearing on how many county residents die. Option d is incorrect because both of those compare exposed groups with unexposed groups to judge what an exposure does. Neither one addresses the chance of dying once a person already has the infection.

Correct Answer: Add a measurable target and a completion date

Goals state direction in broad terms; objectives state a number and a deadline. Adding how much change is expected, in whom, and by when converts the sentence into something that can actually be evaluated. Option a is incorrect because assigning responsibility happens later, when the team maps tasks to people. A named leader tells nobody how much change is expected or when it should appear. Option b is incorrect because rationale belongs in the justification for the program, not in the statement of what will change. Explaining importance leaves the sentence just as unmeasurable as before. Option c is incorrect because funding sources sit in the budget section of a plan. Money answers how the work will be paid for and says nothing about the result the program promises.

Correct Answer: Target the link most practical to interrupt

Transmission stops when any single link is cut, so effort goes where interruption is most feasible and effective. In a shelter that means soap and water hand hygiene, surface disinfection and separating ill residents. Option a is incorrect because breaking all six links at the same time is neither possible nor necessary in a shelter with limited staff. Cutting one link already halts spread, so spreading effort thinly wastes the response. Option b is incorrect because delaying action until laboratory confirmation arrives lets more residents fall ill. Control measures begin on a reasonable working hypothesis, and norovirus in a shelter calls for immediate hygiene measures rather than waiting. Option d is incorrect because caring for the people already sick leaves the fomites, hands and shared bathrooms untouched. Treatment supports individuals, while the outbreak continues along the route that keeps delivering the virus to new residents.

Correct Answer: A propagated outbreak spreading person to person

Waves of increasing size spaced roughly one incubation period apart mark propagated spread, where each set of cases infects the next. Control shifts to isolating cases, immunising contacts and quarantining exposed susceptible children. Option a is incorrect because a point source shows one sharp rise and fall, with every onset squeezed into a single incubation window. Repeated waves separated by weeks cannot come from one brief exposure that has already ended. Option c is incorrect because ongoing exposure to one medium produces a plateau rather than distinct humps, as when a well stays contaminated for weeks. Measles has no such medium; it moves from one child to another. Option d is incorrect because irregular jagged peaks with no regular spacing suggest a source that contaminates now and then, such as a food handler working some shifts. The intervals here are even and match the incubation period.

Correct Answer: Age adjust both rates to one standard

Age is the strongest predictor of death, so an older county will always look worse on a crude figure. Applying each population's age specific rates to one standard population removes that difference and permits honest comparison. Option a is incorrect because a longer window steadies a small count but does nothing about differing age structures. Both figures would still reflect two populations whose members sit at very different points in life. Option b is incorrect because placing two unadjusted figures next to each other repeats the very distortion in question. The county would keep looking deadlier when the real difference is simply how old its residents are. Option c is incorrect because changing the multiplier or expressing the result as a share of the whole leaves the underlying age mix untouched. Rescaling a distorted number produces a distorted number in different units.