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A client with hypothyroidism is prescribed levothyroxine. What symptom indicates that the dosage may need adjustment?
- A. Increased appetite and weight gain.
- B. Increased sensitivity to cold and dry skin.
- C. Increased heart palpitations and sweating.
- D. Increased shortness of breath and rapid heart rate.
Correct Answer: B
Rationale: Increased sensitivity to cold and dry skin may indicate that the dosage of levothyroxine is too low, requiring adjustment. This symptom is typical of hypothyroidism when the body's metabolism slows down, leading to feeling cold and having dry skin. Choices A, C, and D present symptoms more commonly associated with hyperthyroidism, where the body is in a state of overactivity, leading to weight loss, increased heart rate, and sweating. Therefore, these symptoms would not indicate the need for dosage adjustment in a client with hypothyroidism.
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Prolonged exposure to high concentrations of supplemental oxygen over several days can cause which pathophysiological effect?
- A. Reduced cardiac output
- B. Disrupted surfactant production
- C. Hyperactivity of alveoli
- D. Increased oxygen carrying capacity
Correct Answer: B
Rationale: Corrected Rationale: Prolonged exposure to high oxygen concentrations can disrupt the production of surfactant in the lungs, leading to atelectasis and other lung complications. Surfactant is essential for maintaining lung compliance and preventing alveolar collapse. Reduced cardiac output (Choice A) is not directly associated with prolonged oxygen exposure. Hyperactivity of alveoli (Choice C) is not a recognized consequence of high oxygen levels. Increased oxygen carrying capacity (Choice D) is not a pathophysiological effect of prolonged high oxygen exposure.
A client with hypertension is being educated on lifestyle changes by a nurse. Which recommendation is the most important to reduce blood pressure?
- A. Increase water intake
- B. Avoid alcohol consumption
- C. Exercise regularly
- D. Reduce sodium intake
Correct Answer: D
Rationale: Reducing sodium intake is crucial in managing hypertension as high sodium levels can lead to fluid retention and increased blood pressure. While increasing water intake is beneficial for overall health, reducing sodium has a more significant impact on blood pressure. Regular exercise is important for cardiovascular health but does not have as direct an impact on blood pressure as sodium reduction. Avoiding alcohol is also important, but in terms of managing blood pressure, reducing sodium intake takes precedence.
The nurse administers an antibiotic for a respiratory tract infection. To evaluate the medication's effectiveness, which laboratory values should the nurse monitor?
- A. Platelet count and red blood cell count.
- B. White blood cell count and sputum culture.
- C. Hemoglobin A1c and glucose tolerance test.
- D. Arterial blood gases and serum electrolytes.
Correct Answer: B
Rationale: The correct answer is B: White blood cell count and sputum culture. Monitoring white blood cell count and sputum cultures is essential to assess the effectiveness of the antibiotic in treating the respiratory tract infection. Changes in white blood cell count can indicate the body's response to infection, while sputum cultures help determine if the antibiotic is targeting the specific pathogens causing the infection. Choices A, C, and D are incorrect because platelet count, red blood cell count, hemoglobin A1c, glucose tolerance test, arterial blood gases, and serum electrolytes are not directly related to evaluating the effectiveness of an antibiotic in treating a respiratory tract infection.
A 4-year-old child falls off a tricycle and is admitted for observation. How can the nurse best facilitate the child's cooperation during the assessment?
- A. Ask the parent to hold the child during the assessment.
- B. Allow the child to play with a syringe without a needle.
- C. Ask the child to blow out the penlight as if to simulate success.
- D. Explain the function of each organ during the assessment.
Correct Answer: C
Rationale: Engaging the child in blowing out the penlight simulates play and can reduce fear, helping with cooperation during the assessment. Choice A is not recommended as it may increase anxiety by separating the child from the parent. Choice B is not appropriate as it involves playing with a syringe, which may not be safe or suitable. Choice D is not ideal for a 4-year-old child as understanding organ functions may be beyond their developmental level.
A client with Cushing's syndrome presents with excessive bruising and elevated blood glucose. What action should the nurse take first?
- A. Check the client's blood glucose level.
- B. Administer insulin per sliding scale protocol.
- C. Administer intravenous fluids.
- D. Check the client's skin for signs of bruising.
Correct Answer: A
Rationale: Excessive bruising and elevated blood glucose are common symptoms of Cushing's syndrome. The nurse should first check the client's blood glucose level to assess and address the hyperglycemia promptly. Administering insulin or IV fluids would be premature without knowing the current blood glucose level. Checking the skin for bruising, although important for overall assessment, does not address the immediate concern of elevated blood glucose.