Nursing Elites

1. What is the measure of the number of existing cases of a disease in a specific population at a given time?

• A. Incidence
• B. Prevalence
• C. Mortality rate
• D. Morbidity rate

Correct answer: B

Rationale: Prevalence is the correct answer as it refers to the number of existing cases of a disease in a specific population at a given time. Incidence, on the other hand, refers to the number of new cases of a disease in a defined population over a specific period. Mortality rate is the measure of the number of deaths in a particular population due to a specific cause, while morbidity rate is the frequency of a disease in a specific population.

2. Which family planning method is not advisable for women with extremely irregular menstrual periods?

• A. oral contraceptives
• B. diaphragm
• C. natural family planning
• D. vaginal contraceptives

Correct answer: C

Rationale: Natural family planning relies on tracking menstrual cycles to determine fertile days for avoiding or achieving pregnancy. It may not be suitable for women with extremely irregular menstrual periods as it can be challenging to predict fertile days accurately. Oral contraceptives (A), diaphragms (B), and vaginal contraceptives (D) do not rely on regular menstrual cycles for their effectiveness, making them more suitable options for women with irregular periods.

3. A client is admitted with the diagnosis of myocardial infarction (MI). Which of the following lab values would be consistent with this diagnosis?

• A. Low serum albumin
• B. High serum cholesterol
• C. Abnormally low white blood cell count
• D. Elevated creatinine phosphokinase (CPK)

Correct answer: D

Rationale: The correct answer is D: Elevated creatinine phosphokinase (CPK). Elevated CPK levels indicate muscle damage, including damage to the cardiac muscle, which aligns with the diagnosis of myocardial infarction. Choice A, low serum albumin, is not directly related to myocardial infarction. Choice B, high serum cholesterol, is more associated with conditions like atherosclerosis rather than acute myocardial infarction. Choice C, abnormally low white blood cell count, is typically not a lab value associated with myocardial infarction; instead, it could suggest other conditions like infections or bone marrow issues.

4. When caring for premature newborns in an intensive care setting, a nurse carefully monitors oxygen concentration. What is the most common complication of this therapy?

• A. Intraventricular hemorrhage
• B. Retinopathy of prematurity
• C. Bronchopulmonary dysplasia
• D. Necrotizing enterocolitis

Correct answer: B

Rationale: Retinopathy of prematurity is the most common complication in premature infants exposed to high concentrations of oxygen. This condition leads to abnormal blood vessel growth in the retina, which can potentially result in blindness if not managed promptly. Intraventricular hemorrhage, though a significant concern in premature infants, is not directly related to oxygen therapy. Bronchopulmonary dysplasia is primarily associated with mechanical ventilation and oxygen exposure over time, not specifically with oxygen concentration monitoring. Necrotizing enterocolitis is more linked to gastrointestinal issues and is not the most common complication of oxygen therapy in premature newborns.

5. The nurse is teaching a client with cardiac disease about the anatomy and physiology of the heart. Which is the correct pathway of blood flow through the heart?

• A. Right ventricle, left ventricle, right atrium, left atrium
• B. Left ventricle, right ventricle, left atrium, right atrium
• C. Right atrium, right ventricle, left atrium, left ventricle
• D. Right atrium, left atrium, right ventricle, left ventricle

Correct answer: C

Rationale: The correct pathway of blood flow through the heart starts with blood entering the right atrium, moving to the right ventricle, then to the lungs for oxygenation, returning to the left atrium, and finally to the left ventricle before being pumped out to the body. Option A is incorrect as it starts with the ventricles instead of the atria. Option B is incorrect as it has the sequence of ventricles before atria reversed. Option D is incorrect as it has the atria and ventricles mixed up.

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