A nurse has administered methergine (methylergonovine) 0.2 mg to a grand multipara (G7, P6) who delivered vaginally 30 minutes earlier. Which of the following outcomes indicates that the medication is effective?
Pulse rate 80 and regular.
Fundus firm at umbilicus, lochia moderate.
Blood pressure 120/80.
Increase in prothrombin time.
The Correct Answer is B
Choice A rationale
A pulse rate of 80 and regular does not directly indicate Methergine's effectiveness. Normal pulse ranges from 60 to 100 beats per minute. This could result from overall stabilization rather than medication effect.
Choice B rationale
A firm uterine fundus at the umbilicus and moderate lochia indicate effective uterine contraction and hemostasis, reflecting successful intervention with Methergine in managing postpartum hemorrhage.
Choice C rationale
A blood pressure of 120/80 is within the normal adult range but does not specifically reflect Methergine's uterotonic action. Blood pressure monitoring is essential but not the primary efficacy indicator.
Choice D rationale
An increase in prothrombin time reflects coagulation changes but is unrelated to Methergine's mechanism of action. It focuses on hemostatic effects via uterine contractions rather than coagulation pathways.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
Choice A rationale
Surfactant reduces alveolar surface tension, improving lung compliance and facilitating gas exchange of oxygen and carbon dioxide, critical in addressing respiratory distress syndrome in premature infants.
Choice B rationale
Periodic apnea in premature infants is a neurological immaturity issue, not directly addressed by surfactant, which targets alveolar function in the lungs.
Choice C rationale
Surfactant does not possess antimicrobial properties; it functions to stabilize alveoli, not to combat respiratory infections.
Choice D rationale
Sedation requirements for infants are unrelated to surfactant therapy, which works mechanically in the lungs rather than through central nervous system effects.
Correct Answer is C
Explanation
Choice A rationale
Projectile vomiting is not a typical symptom of diaphragmatic hernia. This condition primarily affects respiratory function due to lung compression by abdominal organs in the chest cavity.
Choice B rationale
High-pitched crying is not a hallmark symptom of diaphragmatic hernia. The condition primarily presents with respiratory distress due to lung underdevelopment and organ displacement.
Choice C rationale
Respiratory distress occurs due to lung compression and underdevelopment caused by abdominal organs herniating into the chest cavity. This is a primary symptom observed in diaphragmatic hernia cases.
Choice D rationale
Fecal incontinence is unrelated to diaphragmatic hernia. The condition primarily impacts respiratory function due to the displacement of abdominal organs into the thoracic cavity.
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