The nurse plans care for a client with a brain tumor who developed a syndrome of inappropriate antidiuretic hormone.
Which interventions should the nurse include in the plan? Select all that apply.
Monitor blood glucose levels.
Administer tolvaptan.
Assess for dry mucous membranes.
Monitor sodium levels.
Maintain fluid restriction.
Implement seizure precautions.
Correct Answer : B,D,E,F
Managing SIADH requires understanding water metabolism and the effects of excessive antidiuretic hormone. Knowledge of fluid volume excess, dilutional hyponatremia, and neurological risks is applied to select interventions that correct electrolyte imbalances and prevent life-threatening cerebral edema.
Choice A rationale
Blood glucose monitoring is not a standard intervention for SIADH. While brain tumors can affect various hormones, SIADH specifically impacts water retention and sodium levels rather than the insulin-glucagon axis or glucose metabolism directly.
Choice B rationale
Tolvaptan is a vasopressin receptor antagonist that promotes the excretion of free water without losing electrolytes. It is specifically used in SIADH to treat euvolemic hyponatremia by blocking the effects of excessive antidiuretic hormone.
Choice C rationale
SIADH causes fluid retention and volume expansion, leading to moist mucous membranes and fluid overload. Assessing for dry membranes is more appropriate for dehydration or diabetes insipidus, which is the opposite of SIADH.
Choice D rationale
SIADH leads to dilutional hyponatremia (normal sodium 135 to 145 mEq/L). Frequent monitoring is essential because low sodium levels can lead to mental status changes, muscle twitching, and life-threatening cerebral edema if not managed.
Choice E rationale
Fluid restriction is the primary treatment for SIADH. By limiting intake, the body can slowly correct the dilutional hyponatremia. This prevents further expansion of the intravascular volume and reduces the risk of worsening hyponatremia.
Choice F rationale
Severe hyponatremia significantly increases the risk of seizures due to brain cell swelling. Implementing seizure precautions (padded side rails, suction equipment) is a critical safety measure for any patient with rapidly falling or low sodium.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["D","E"]
Explanation
Providing post-mortem care requires knowledge of legal requirements, hospital protocols, and psychosocial support. The nurse must apply principles of cultural sensitivity and respect for the deceased while ensuring that administrative and physical care tasks align with the specific circumstances of death.
Choice A rationale
While a physician or authorized practitioner must pronounce death and sign the certificate, it is not the immediate responsibility of the nurse to ensure the signature is completed before beginning initial post-mortem nursing care.
Choice B rationale
Removing tubes is often prohibited if an autopsy is required, especially in sudden or suspicious deaths. The nurse must first verify the cause of death and institutional policy before disturbing any medical devices or invasive lines.
Choice C rationale
Removing the body immediately is insensitive and may interfere with the grieving process. Families should be given adequate time to spend with the deceased to begin their emotional processing and perform any necessary rituals.
Choice D rationale
Allowing for religious and cultural customs is a core component of holistic nursing care. This respects the dignity of the deceased and supports the family's coping mechanisms during the immediate period following a significant loss.
Choice E rationale
Providing privacy is essential for the family to express grief without observation. This therapeutic environment allows for intimate goodbyes and facilitates the beginning of the mourning process in a respectful and safe hospital or hospice setting.
Correct Answer is D
Explanation
Monitoring traumatic brain injury involves assessing neurological changes that indicate secondary brain injury. Knowledge of intracranial dynamics and Cushing's triad is essential to identify shifting brain tissue or worsening herniation, which requires immediate medical or surgical intervention to save life.
Choice A rationale
Pupillary changes indicate pressure on the oculomotor nerve but may occur earlier than profound neurological collapse. While important, they are often secondary indicators compared to the global decline seen in mental status and motor function.
Choice B rationale
Fever and elevated blood pressure can occur in brain injury due to hypothalamic dysfunction or sympathetic surges. However, without bradycardia and irregular respirations, they do not definitively indicate immediate, late-stage intracranial pressure emergencies.
Choice C rationale
Headache and nausea are subjective, early signs of increased intracranial pressure. While concerning and requiring monitoring, they do not signify the urgent physiological crisis or neurological deficit represented by a plummeting level of consciousness.
Choice D rationale
A decreased level of consciousness is the most sensitive indicator of neurological deterioration. Coupled with one-sided weakness, it suggests focal deficits or impending herniation, necessitating immediate reporting to prevent permanent brain damage or death.
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