A nurse is monitoring a client on lithium therapy for bipolar disorder. Which lab value is most concerning?
Lithium level of 2.2 mEq/L
Potassium level of 4.1 mmol/L
Sodium level of 140 mEq/L
TSH level of 3.0 ng/mL
The Correct Answer is A
Choice A reason: A lithium level of 2.2 mEq/L represents severe lithium toxicity, as the standard therapeutic range is narrowly defined between 0.6 and 1.2 mEq/L. Levels exceeding 2.0 mEq/L are associated with life-threatening complications, including cardiac arrhythmias, seizures, permanent neurological impairment, and renal failure, necessitating immediate clinical intervention.
Choice B reason: A potassium level of 4.1 mmol/L is well within the physiological reference range of 3.5 to 5.0 mmol/L. While maintaining electrolyte balance is crucial for patients on mood stabilizers, this specific value indicates normal homeostatic function and does not pose an acute risk to the client's health or safety.
Choice C reason: A sodium level of 140 mEq/L is a normal finding, falling within the standard 135 to 145 mEq/L range. Proper sodium intake is vital because lithium is a salt; however, this stable level indicates that the client is not currently experiencing hyponatremia, which could otherwise exacerbate lithium retention.
Choice D reason: A Thyroid Stimulating Hormone (TSH) level of 3.0 ng/mL is within the typical clinical reference range. Although long-term lithium therapy can induce secondary hypothyroidism or goiter, this specific laboratory result suggests that the client’s thyroid function remains adequately compensated and is not a cause for immediate concern.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A reason: Respecting patient decisions is the definition of the principle of autonomy. In mental health, this involves honoring a client's right to refuse certain treatments or participate in their care plan, provided they have the legal capacity and are not an immediate danger to themselves or others.
Choice B reason: Providing truthful information is the definition of the principle of veracity. This involves being honest about diagnoses, the potential side effects of medications, and the reality of the treatment process to ensure that the patient is fully informed and not misled by the healthcare team.
Choice C reason: Treating all patients equally and ensuring fair distribution of resources is the definition of the principle of justice. This principle mandates that care should not be biased by a patient's background, financial status, or the nature of their specific mental health diagnosis.
Choice D reason: Beneficence is the ethical duty to "do good" and act in the best interest of the patient. In psychiatric nursing, this means taking positive actions to promote mental health, alleviate suffering, and implement interventions that directly contribute to the patient’s recovery and overall holistic well-being.
Correct Answer is C
Explanation
Choice A reason: Competitive group activities are highly contraindicated for a client in an acute manic state. Such environments provide excessive stimuli and can trigger agitation, hostility, or physical aggression. Manic clients often have poor impulse control and a low frustration tolerance, making competitive settings unsafe and overwhelming.
Choice B reason: During an acute manic episode, clients experience "flight of ideas" and significant distractibility. Attempting to engage them in complex problem-solving tasks is ineffective and frustrating, as their cognitive processes are too fragmented to maintain the focus required for high-level executive functioning or detailed task completion.
Choice C reason: The priority intervention for acute mania is the reduction of external stimuli to help calm the hyperactive nervous system. A quiet, dimly lit room with minimal noise and activity helps decrease the sensory input that fuels manic behavior, promoting safety and eventually allowing the client to rest.
Choice D reason: While autonomy is a general nursing goal, a client in acute mania lacks the judgment and insight to make safe, independent decisions. Their behavior is often risky, impulsive, and socially inappropriate. Close supervision and set boundaries are necessary to prevent the client from harming themselves or others during this phase.
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