The nurse suspects the client's dose of levothyroxine (Synthroid) is too low when the client displays which symptom?

Tachycardia

Intolerance to cold

Weight loss

Fine tremors of fingers and hands

Answer and Explanation

The Correct Answer is B

Choice A reason: Tachycardia, or rapid heart rate, is typically a symptom of an overdose of levothyroxine, not an underdose.

Choice B reason: Intolerance to cold is a common symptom of hypothyroidism, which occurs when the thyroid hormone levels are too low, indicating that the levothyroxine dose may be insufficient.

Choice C reason: Weight loss is more commonly associated with hyperthyroidism or an excessive dose of levothyroxine.

Choice D reason: Fine tremors of fingers and hands are also more indicative of hyperthyroidism or too high a dose of levothyroxine.

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Correct Answer is C

Explanation

Choice A reason: Less constipation is not a direct indicator of effective PTU therapy, as constipation can be associated with hypothyroidism, and PTU is used to treat hyperthyroidism.

Choice B reason: Weight loss is expected in hyperthyroidism, and PTU is used to reduce thyroid hormone levels, not to promote weight loss.

Choice C reason: A reduction in facial puffiness can indicate that the PTU is effectively reducing thyroid hormone levels, as puffiness can be associated with hyperthyroidism.

Choice D reason: Improvement in vision is not a typical outcome of PTU therapy and does not directly indicate its effectiveness.

A. Serum lactate level 3.9 mmol/L (normal range: 0.5-2 mmol/L) B. Vital signs: Temperature 100°F, Heart rate 88 bpm, Respiratory rate 22 breaths/min, Blood pressure 124/72 mmHg C. Pulse oximetry 96% on oxygen at 2 L/min via nasal cannula D. Breath sounds with rhonchi bilaterally

Correct Answer is A

Explanation

Choice A reason: The serum lactate level of 3.9 mmol/L is significantly higher than the normal range of 0.5-2 mmol/L. This is a critical value to report as it indicates a high likelihood of sepsis, which is a life-threatening condition requiring immediate intervention. Elevated lactate levels suggest that the tissues are not adequately oxygenated, a state known as tissue hypoxia, which is a hallmark of sepsis.

Choice B reason: While the vital signs show a slight fever (100°F), the heart rate, respiratory rate, and blood pressure are within normal limits for an adult and do not indicate an immediate life-threatening condition.

Choice C reason: A pulse oximetry reading of 96% on supplemental oxygen is within the acceptable range, indicating adequate oxygen saturation and not a direct sign of sepsis.

Choice D reason: The presence of rhonchi bilaterally suggests airway obstruction due to mucus, which can be associated with pneumonia. However, this finding alone does not carry the same immediate risk of morbidity and mortality as an elevated lactate level indicative of sepsis.

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The nurse suspects the client's dose of levothyroxine (Synthroid) is too low when the client displays which symptom?

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Naxlex Comprehensive Predictor Exams

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Correct Answer is C

Explanation

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Correct Answer is A

Explanation

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