Nokea
What is the term used in epidemiology to indicate the frequency of the occurrence of a condition?
- A. Incidence
- B. Prevalence
- C. Relative risk
- D. Odd ratio
Correct Answer: B
Rationale: Prevalence counts everyone with a condition now total diabetes cases snapshot unlike incidence's newbies, risk's ratios, or odds' gambles. It's the epidemiologist's bread-and-butter for chronic burdens, a nurse's gauge of how many need care today.
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You measure the abdominal circumference and the hip circumference of a male patient with hypertension, overweight and recently-diagnosed type 2 diabetes mellitus. Question: Which values are most likely to be found in this patient?
- A. Abdomen: 78 cm, hip: 78 cm
- B. Abdomen: 78 cm, hip: 86 cm
- C. Abdomen: 102 cm, hip: 90 cm
- D. Abdomen: 90 cm, hip: 102 cm
Correct Answer: C
Rationale: Type 2, hypertension, overweight belly bulges past hips, 102 cm to 90 cm fits metabolic syndrome's apple shape, not slim or reverse. Nurses measure this, a chronic girth clue.
How do oxygen radicals react with different molecules?
- A. By accepting an electron
- B. By donating an electron
- C. By accepting a proton
- D. By donating a proton
Correct Answer: A
Rationale: Oxygen radicals grab electrons unpaired, they steal, wrecking cells, not giving or juggling protons. A chronic chaos starter nurses know this chemistry bite.
About special considerations in the management of hypertension in older patients, which of the following is the correct answer?
- A. Systolic hypertension - DBP should be <70 mmHg
- B. Dementia - Target SBP should not be <150/90 mmHg
- C. Care home residents - SBP <130 mmHg
- D. Frailty - Target BP not <140/90 mmHg
Correct Answer: D
Rationale: Frail elders BP >140/90 guards perfusion; systolic, dementia, care home tweaks misfire. Nurses ease this chronic frail line.
A nurse provides care on a bone marrow transplant unit and is preparing a female patient for a hematopoietic stem cell transplantation (HSCT) the following day. What information should the nurse emphasize to the patient's family and friends?
- A. Your family should likely gather at the bedside in case there's a negative outcome
- B. Make sure she doesn't eat any food in the 24 hours before the procedure
- C. Wear a hospital gown when you go into the patient's room
- D. Do not visit if you've had a recent infection
Correct Answer: D
Rationale: HSCT wipes out immunity, leaving patients prone to sepsis recent infections in visitors could bring pathogens (e.g., flu, strep) into her sterile bubble. Telling family to skip visits if sick is priority, trumping gown-wearing (useful but secondary) or fasting (not typically 24 hours). Gathering for a bad outcome's overly grim HSCT's risky but not a death sentence pre-procedure. Nurses stress this to shield the patient during the 2-4 week engraftment window, when neutropenia peaks, making infection control the linchpin of pre-transplant education in oncology.
Which of the following clients is most at risk for developing endocarditis?
- A. A client who recently had a valve replacement and had dental work recently performed
- B. A client who recently underwent a valve replacement
- C. A client with Marfan's syndrome
- D. A client recently diagnosed with mitral stenosis
Correct Answer: A
Rationale: Endocarditis loves damaged valves and bacteremia recent valve replacement plus dental work (a bacterial gateway) spikes risk, as prosthetic valves are prime targets post-procedure. Valve replacement alone risks less without a trigger. Marfan's or mitral stenosis predispose, but lack acute catalysts like dental work. Nurses flag this combo surgery and oral breach anticipating prophylaxis or monitoring, a top risk in endocarditis's infectious playbook.