Correct Answer: A

Rationale: A chemical reaction between drugs before their administration or absorption is termed a drug incompatibility. This phenomenon commonly occurs when drug solutions are mixed before intravenous administration but can also happen with orally administered drugs. Choices B, C, and D are incorrect because side effects, adverse events, and allergic responses typically occur after the drugs have been administered and absorbed, not before.

Correct Answer: A

Rationale: The correct answer is to notify the registered nurse of the findings. In a pregnant client, the normal temperature range is 98°F to 99.6°F, with a pulse rate of 60 to 90 beats/min and respirations of 12 to 20 breaths/min. A temperature of 100.4°F or higher, along with an increased pulse rate and faster respirations, suggests a possible infection. Immediate notification of the registered nurse is crucial for further evaluation and intervention. While documenting the findings is essential, the priority lies in promptly escalating abnormal vital signs for assessment and management. Rechecking vital signs in 1 hour may delay necessary interventions for a deteriorating condition. Continuing to collect data is relevant but should not delay informing the registered nurse when abnormal vital signs are present.

Correct Answer: D

Rationale: The correct answer is 'Absence of accelerations after fetal movement.' In a nonreactive (nonreassuring) stress test, the monitor recording would not show accelerations after fetal movement within a 40-minute period. This absence of accelerations indicates a nonreactive result. Choices A, B, and C describe different patterns of fetal heart rate accelerations that are not indicative of a nonreactive result in a nonstress test, making them incorrect. Choice A describes the characteristics of a reactive (reassuring) result, where there should be at least two fetal heart accelerations within a 20-minute period, peaking at least 15 beats/min above the baseline, and lasting 15 seconds from baseline to baseline. Choice B incorrectly states 'Accelerations without fetal movement,' which is contradictory. Choice C describes an acceleration response to fetal movement, which does not signify a nonreactive result.

Correct Answer: B

Rationale: The nurse expects to primarily note tympany when percussing the abdomen. Tympany should predominate because air in the intestines rises to the surface when the client is in a supine position. Dullness is usually heard over a distended bladder, adipose tissue, fluid, or a mass. Borborygmus, which refers to hyperperistalsis, is typically heard on auscultation, not percussion. Hyperresonance is present with gaseous distention, not the typical finding when percussing all four quadrants of the abdomen.

Correct Answer: C

Rationale: After delivery, bradycardia (pulse rate 50-70 beats/min) may occur, reflecting the large amount of blood returning to the central circulation after delivery of the placenta. The increase in central circulation results in increased stroke volume, allowing a slower heart rate to provide adequate maternal circulation. A pulse rate of 55 beats/min falls within the normal range post-delivery, so there is no need to notify the healthcare provider immediately. It is important for the client to remain on bed rest in the immediate postpartum period to prevent complications. While range-of-motion exercises are beneficial for a client on bed rest, it is not the priority based on the data provided. Therefore, the most appropriate nursing action is to document the finding for accurate record-keeping and monitoring of the client's condition.