A nurse is caring for a client with hypothyroidism who is starting levothyroxine.
What should the nurse understand about the initial start of levothyroxine for hypothyroidism?
The client's dosage will be adjusted daily based on blood levels.
The client will remain on the initial dosage during the course of treatment.
The client will start at a high dosage, and the amount will be tapered as needed.
The client will start on a low dosage, which can be gradually increased.
The Correct Answer is D
Choice A rationale
Adjusting levothyroxine dosage daily based on blood levels is generally not appropriate due to the drug's long half-life, which necessitates stable drug concentrations before accurate assessment. Frequent adjustments risk inducing fluctuations in thyroid hormone levels, potentially leading to hyperthyroidism or continued hypothyroidism and making precise titration challenging for maintaining euthyroid state.
Choice B rationale
Remaining on the initial dosage throughout treatment is highly improbable for levothyroxine. Thyroid hormone replacement therapy requires individualized dosing due to variations in patient metabolism, weight, and the severity of hypothyroidism. Regular monitoring of thyroid stimulating hormone (TSH) levels is essential to titrate the dose, ensuring optimal therapeutic effect and avoiding complications.
Choice C rationale
Starting levothyroxine at a high dosage is contraindicated, particularly in older adults or those with cardiovascular comorbidities, due to the risk of precipitating adverse cardiac events such as arrhythmias or angina. High doses can overwhelm the cardiovascular system, demanding increased metabolic activity. Gradual titration minimizes these risks and allows for physiological adaptation.
Choice D rationale
Starting on a low dosage and gradually increasing levothyroxine is the standard and safest approach. This strategy allows the body to adapt to the exogenous thyroid hormone, minimizing the risk of adverse effects like cardiac arrhythmias, particularly in sensitive individuals. Gradual titration prevents rapid metabolic shifts and allows for careful monitoring of patient response and TSH levels.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
While fine motor skills may be indirectly affected, primary developmental concerns following cleft lip and palate repair center on oral motor function. The anatomical reconstruction primarily impacts feeding, speech articulation, and oral coordination, which are foundational to oral motor skill development. Fine motor development is less directly impacted by this specific surgical correction.
Choice B rationale
Cleft lip and palate repair directly impacts the oral structures essential for proper feeding and speech development, leading to potential delays in oral motor skills. Infants may experience difficulties with sucking, swallowing, and later, articulating sounds due to altered anatomy and muscle function. Early intervention and therapy are crucial to address these challenges.
Choice C rationale
Proprioceptive skills, which involve the sense of body position and movement, are not typically a primary developmental concern following cleft lip and palate repair. The surgery primarily affects the oral cavity and facial structures. While overall development can be complex, direct anatomical or neurological impact on proprioception is not a standard complication.
Choice D rationale
Olfactory motor skills, related to the sense of smell and associated motor responses, are not directly impacted by cleft lip and palate repair. The surgical intervention focuses on the oral and facial structures, not the olfactory system. Therefore, developmental delays in this specific area are not a primary concern following this type of corrective surgery.
Correct Answer is D
Explanation
Choice A rationale
Applying a fetal scalp electrode is an invasive procedure that provides a more accurate assessment of fetal heart rate. However, late decelerations indicate uteroplacental insufficiency requiring immediate interventions to improve fetal oxygenation before considering invasive monitoring.
Choice B rationale
Performing a vaginal exam can assess labor progress and rule out cord prolapse or other issues. While important, it is not the immediate priority when late decelerations indicate acute fetal hypoxemia; improving oxygenation to the fetus is paramount.
Choice C rationale
Inserting an intravenous catheter is essential for administering fluids or medications. However, the most immediate intervention for late decelerations is to improve uterine blood flow and fetal oxygenation, which is achieved through maternal repositioning as the first step.
Choice D rationale
Late decelerations indicate uteroplacental insufficiency, meaning reduced blood flow and oxygen to the fetus. Repositioning the client to the left-lateral position relieves pressure on the vena cava, improving venous return to the heart, thus increasing uterine blood flow and fetal oxygenation by optimizing placental perfusion.
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