Nokea
The term 'epidemiology' is best defined as the study of:
- A. The causes of disease
- B. The distribution and determinants of health-related states in populations
- C. The treatment and prevention of disease
- D. The healthcare system and its effectiveness
Correct Answer: B
Rationale: Epidemiology is the study of the distribution and determinants of health-related states in populations. Choice A is incorrect because epidemiology focuses on more than just causes but also on distribution and determinants. Choice C is incorrect as it specifically relates to public health and not just treatment and prevention. Choice D is incorrect as epidemiology is broader than just focusing on the healthcare system and its effectiveness.
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The nurse is assessing a client with chronic obstructive pulmonary disease (COPD). Which of the following findings should the nurse expect?
- A. Decreased anteroposterior diameter
- B. Hyperresonance on percussion
- C. Increased breath sounds
- D. Prolonged expiratory phase
Correct Answer: D
Rationale: The correct answer is D: Prolonged expiratory phase. In COPD, there is airflow obstruction leading to difficulty in exhaling air. This results in a prolonged expiratory phase. Choices A, B, and C are incorrect. Decreased anteroposterior diameter is associated with conditions like barrel chest in emphysema, not COPD. Hyperresonance on percussion is typical in conditions like emphysema, not necessarily in COPD. Increased breath sounds are not a typical finding in COPD; instead, diminished breath sounds may be present due to air trapping.
A senior high school student, whose immunization status is current, asks the school nurse which immunizations will be included in the precollege physical. Which vaccine should the nurse tell the student to expect to receive?
- A. Hepatitis C (HepC)
- B. Influenza type B (HIB)
- C. Measles, mumps, rubella (MMR)
- D. Diphtheria, tetanus, pertussis (DTaP)
Correct Answer: C
Rationale: The correct answer is C: Measles, mumps, rubella (MMR). MMR vaccine is commonly included in precollege physicals to ensure students are protected against these diseases. Choice A, Hepatitis C (HepC), is incorrect as the standard vaccine for hepatitis given in childhood is Hepatitis B. Choice B, Influenza type B (HIB), is not typically administered during precollege physicals but is recommended for younger children. Choice D, Diphtheria, tetanus, pertussis (DTaP), is usually given in early childhood and not typically repeated during precollege physicals.
When the nurse identifies what appears to be ventricular tachycardia on the cardiac monitor of a client being evaluated for possible myocardial infarction, the first action the nurse should perform is to
- A. Begin cardiopulmonary resuscitation
- B. Prepare for immediate defibrillation
- C. Notify the 'Code' team and healthcare provider
- D. Assess airway, breathing, and circulation
Correct Answer: D
Rationale: The correct first action for the nurse to take when identifying what appears to be ventricular tachycardia in a client being evaluated for possible myocardial infarction is to assess the client's airway, breathing, and circulation. This step is crucial to determine the client's stability and the need for immediate intervention. Beginning cardiopulmonary resuscitation or preparing for immediate defibrillation without first assessing the airway, breathing, and circulation could delay potentially life-saving interventions. Notifying the 'Code' team and healthcare provider should come after ensuring the client's immediate needs are addressed.
What is the primary goal of community health nursing?
- A. Promote health and prevent disease
- B. Provide care to the sick
- C. Conduct research
- D. Develop health policies
Correct Answer: A
Rationale: The primary goal of community health nursing is to promote health and prevent disease. Community health nurses focus on preventive care, health promotion, and education to improve the overall health of the community. Providing care to the sick (Choice B) is part of nursing but not the primary goal of community health nursing. While research (Choice C) and developing health policies (Choice D) may be components of community health nursing, they are not the primary goal, which is centered around promoting health and preventing disease.
A 4-month-old child taking digoxin (Lanoxin) has a blood pressure of 92/78; resting pulse of 78; respirations 28, and a potassium level of 4.8 mEq/L. The client is irritable and has vomited twice since the morning dose of digoxin. Which finding is most indicative of digoxin toxicity?
- A. Bradycardia
- B. Lethargy
- C. Irritability
- D. Vomiting
Correct Answer: A
Rationale: Bradycardia (abnormally slow heart rate) is a key sign of digoxin toxicity. In this scenario, the child's symptoms of irritability, vomiting, along with the resting pulse of 78 despite being on digoxin, suggest an impending bradycardia due to digoxin toxicity. Lethargy can also be a sign, but in this case, the child is irritable rather than lethargic. Vomiting, though a symptom, is not as specific to digoxin toxicity as bradycardia. Irritability, while present, is not the most indicative finding of digoxin toxicity compared to bradycardia.