A nurse in an emergency department is caring for a child following an overdose of acetylsalicylic acid. Which of the following medications should the nurse plan to administer?
Naloxone
Phytonadione
Midazolam
Flumazenil
The Correct Answer is B
Acetylsalicylic acid (aspirin) overdose in children is a medical emergency that leads to a complex disturbance of the acid-base balance and interferes with normal clotting mechanisms. Aspirin inhibits the synthesis of vitamin K-dependent clotting factors and can induce a state of hypoprothrombinemia, significantly increasing the risk of spontaneous or internal hemorrhage. Nursing management involves stabilization, gastrointestinal decontamination, and the administration of specific agents to counteract the systemic effects of the salicylate toxicity.
Rationale:
A. Naloxone is a concentrated opioid antagonist used specifically to reverse respiratory depression and sedation caused by opioid overdose (such as morphine or fentanyl). It works by competing for opioid receptor sites in the brain. Because acetylsalicylic acid is a non-steroidal anti-inflammatory drug (NSAID) and not an opioid, naloxone would have no therapeutic effect in reversing the metabolic acidosis or the toxic effects associated with an aspirin overdose.
B. Phytonadione (Vitamin K) is administered in cases of aspirin overdose to manage the risk of bleeding. Large doses of salicylates can interfere with the liver's ability to produce prothrombin, leading to a prolonged prothrombin time (PT). By providing exogenous Vitamin K, the nurse helps restore the body’s ability to synthesize clotting factors, thereby reducing the risk of hemorrhagic complications while the body clears the toxic levels of salicylate from the system.
C. Midazolam is a benzodiazepine used for sedation, anxiety reduction, and the management of active seizures. A severe aspirin overdose can eventually lead to neurological symptoms or seizures in its terminal stages, but midazolam is not a corrective treatment for the overdose itself. Furthermore, it could potentially mask neurological changes that the nurse needs to monitor closely, such as the progression of salicylate-induced encephalopathy.
D. Flumazenil is a specific reversal agent used for benzodiazepine toxicity. It works by competitively inhibiting the activity at the benzodiazepine receptor site on the GABA receptor complex. It has no pharmacological interaction with salicylates and would be ineffective in treating a child who has ingested a toxic amount of acetylsalicylic acid, as the underlying pathology involves metabolic and hematologic dysfunction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Diversional activities for hospitalized children should match the child’s developmental stage as well as physical limitations caused by treatment such as skeletal traction. Selecting appropriate toys for a hospitalized child requires a solid understanding of Piaget’s stages of cognitive development and Erikson’s stages of psychosocial development. For a 2-year-old (toddler), the primary developmental task is Autonomy vs. Shame and Doubt. Toddlers engage in parallel play and enjoy activities that allow them to mimic adult behaviors and explore their environment within the physical limitations of their treatment.
Rationale:
A. A dress-up doll is appropriate for a 2-year-old because toddlers engage in imitative and pretend play by copying familiar daily activities such as dressing, feeding, or caring for others. This type of toy supports imagination and emotional comfort while being safe to use in bed during skeletal traction. It also encourages fine motor development without excessive physical movement.
B. Playing cards are more suitable for older preschool or school-age children who can understand rules, matching, and turn-taking games. A 2-year-old typically lacks the cognitive and attention skills needed for structured card games. Small cards may also present frustration and limited developmental benefit for a toddler.
C. A video game system is generally more appropriate for older children who have better hand-eye coordination and cognitive ability to follow game objectives. Toddlers have limited ability to use controllers effectively and may not benefit from this type of play. It also does not support the simple, imaginative play preferred at this developmental stage.
D. A sewing kit is unsafe and developmentally inappropriate for a 2-year-old child. It contains sharp objects such as needles and small parts that present serious choking and injury hazards. Toddlers require toys that are safe, non-sharp, and suitable for supervised simple play rather than complex fine motor tasks like sewing.
Correct Answer is A
Explanation
Pediculosis (head lice infestation) is a common parasitic condition in school-age children caused by Pediculus humanus capitis. Transmission occurs through direct head-to-head contact and, less commonly, through contaminated personal items. Management involves pharmacologic treatment of the scalp and environmental decontamination of items that may harbor lice or nits. Effective eradication requires breaking the cycle of reinfestation through proper hygiene and cleaning measures.
Rationale:
A. Placing hairbrushes, combs, and hair accessories in boiling water for 10 minutes is an appropriate method to kill lice and nits on personal items. High heat effectively destroys parasites and prevents reinfestation when items are reused. This demonstrates correct understanding of environmental decontamination for pediculosis.
B. Sealing nonwashable items in a plastic bag for 1 week is incorrect because lice cannot survive more than 1 to 2 days without a human host. Recommended quarantine for nonwashable items is typically about 48 hours to 2 days, not a full week. Prolonged sealing is unnecessary and reflects incorrect timing.
C. Using medicated shampoo daily for 3 days is incorrect because most pediculicide treatments are applied once and then repeated only if needed after 7 to 10 days. Overuse can cause scalp irritation and does not improve effectiveness. Proper timing is essential to target newly hatched lice after the initial treatment.
D. Washing clothing and bedding using a double rinse is unnecessary because lice are primarily transmitted through direct head contact rather than fabrics. Standard washing in hot water and drying on high heat is sufficient to eliminate lice. A double rinse does not provide added benefit in preventing reinfestation.
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