Which findings are consistent with early compensated septic shock in a child?
Decreased urine output.
Cool extremities.
Normal blood pressure.
Tachycardia.
Correct Answer : C,D
Choice A rationale
Decreased urine output (oliguria, typically <1 mL/kg/hour in a child) is a sign of poor renal perfusion due to reduced cardiac output and is characteristic of later, decompensated shock. In early, compensated septic shock, systemic vascular resistance (SVR) is often reduced (warm shock), and the compensatory mechanisms may still maintain adequate renal blood flow and normal urine output.
Choice B rationale
Cool extremities result from intense peripheral vasoconstriction as a compensatory mechanism to shunt blood to vital organs. This is characteristic of hypovolemic or cold septic shock (high SVR). However, in the more common early warm septic shock in children, peripheral vasodilation (low SVR) leads to flushed, warm extremities, not cool ones.
Choice C rationale
Normal blood pressure (BP) (systolic BP within the normal range, which varies by age, e.g., >90 mmHg in a school-aged child) is the hallmark of compensated shock. Compensatory mechanisms, primarily tachycardia and mild vasoconstriction, are successfully maintaining cardiac output and thus adequate mean arterial pressure, despite underlying circulatory dysfunction.
Choice D rationale
Tachycardia (elevated heart rate, normal range varies by age, e.g., >130 bpm in a toddler) is one of the earliest and most reliable signs of all forms of shock in children. It represents a critical cardiovascular compensatory mechanism to increase cardiac output (Cardiac Output = Stroke Volume×Heart Rate) in response to systemic vasodilation and early hypovolemia characteristic of sepsis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
A mild headache is a very common and expected symptom following a concussion, resulting from the temporary biomechanical injury to brain tissue or surrounding structures. This symptom alone typically does not indicate an immediate neurological deterioration or an expanding intracranial lesion, provided it doesn't rapidly worsen in severity or become refractory to simple analgesics. Management generally involves rest and observation.
Choice B rationale
Vomiting, especially if persistent or projectile, suggests a significant increase in intracranial pressure (ICP) due to brain swelling or an intracranial hemorrhage. This pressure irritates the vomiting center in the medulla, a critical area of the brainstem. Given that normal ICP is 5-15 mmHg in adults and slightly lower in children, new or worsening emesis warrants prompt clinical and possibly neuroimaging reevaluation.
Choice C rationale
Alertness indicates an intact reticular activating system (RAS), which is crucial for consciousness. Maintaining an alert mental status is a positive sign that suggests the primary brain centers are functioning adequately and the ICP is not critically elevated. A decreased level of consciousness would be a much more concerning indicator of neurological decline.
Choice D rationale
A normal gait reflects proper coordination of motor, sensory, and cerebellar functions. Gross neurological integrity suggests that the cerebral and cerebellar pathways, which govern balance and movement, are not significantly compromised. An abnormal gait, like ataxia, would be a sign of focal neurological deficit or severe intracranial pressure.
Correct Answer is A
Explanation
Choice A rationale
Epiglottitis is a rapidly progressive, life-threatening bacterial infection causing severe swelling of the epiglottis, potentially leading to acute, complete upper airway obstruction. The most critical initial nursing action is to minimize distress and be immediately prepared for definitive airway management (intubation or tracheostomy) by the appropriate team, as the airway can close suddenly.
Choice B rationale
Racemic epinephrine is an α-adrenergic agonist used to cause vasoconstriction and reduce subglottic edema, primarily indicated for croup. Epiglottitis involves supraglottic swelling, and while it may theoretically reduce edema, the primary risk is mechanical obstruction, making preparation for airway management the priority.
Choice C rationale
While prompt intravenous antibiotic administration is essential to treat the causative bacterium, usually Haemophilus influenzae type b, this action is secondary to securing a patent airway. A patient can die from asphyxiation much faster than from bacteremia, thus airway security must be addressed first.
Choice D rationale
Attempting to obtain a throat culture in a child with suspected epiglottitis is contraindicated. Any manipulation of the posterior pharynx or epiglottis, such as using a tongue blade or swab, can trigger laryngospasm and cause immediate, complete airway obstruction, which is a catastrophic complication.
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