A nurse is reviewing the medical record of a client who has preeclampsia prior to administering labetalol.
For which of the following findings should the nurse withhold the medication?
Uric acid 7.5 mg/dL (2.7 to 7.3 mg/dL).
Heart rate 54/min.
FHR 112/min.
BUN 23 mg/dL (10 to 20 mg/dL).
The Correct Answer is B
Choice A rationale
Uric acid levels in preeclampsia can be elevated due to decreased renal clearance and increased production, often exceeding the normal range of 2.7 to 7.3 mg/dL. A value of 7.5 mg/dL is slightly elevated, which is a common finding in preeclampsia and does not typically contraindicate the administration of labetalol, an antihypertensive medication. It reflects disease progression but does not pose an immediate risk regarding medication administration.
Choice B rationale
Labetalol is a beta-blocker that reduces heart rate and blood pressure. A heart rate of 54/min is below the normal adult resting heart rate range (typically 60-100 beats/min) and indicates bradycardia. Administering labetalol to a client with pre-existing bradycardia could further depress the heart rate, potentially leading to symptomatic bradycardia, decreased cardiac output, and inadequate tissue perfusion, thus requiring the nurse to withhold the medication.
Choice C rationale
A fetal heart rate (FHR) of 112/min is within the normal range for a fetus (typically 110-160 beats/min). While labetalol can rarely cause fetal bradycardia, a baseline FHR of 112/min does not contraindicate its administration. The primary concern with labetalol in preeclampsia is the maternal hemodynamic response, and this FHR value does not indicate an immediate fetal distress that would preclude the medication.
Choice D rationale
A BUN level of 23 mg/dL is slightly elevated above the normal range of 10 to 20 mg/dL, often seen in preeclampsia due to impaired renal function. While this indicates renal involvement, it does not contraindicate the administration of labetalol. Labetalol is primarily metabolized by the liver, and while caution is advised in renal impairment, this BUN level alone does not warrant withholding the medication.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
Choice A rationale
A respiratory rate of 34 breaths/min for a newborn is within the normal physiological range, which is typically 30 to 60 breaths/min. This finding does not indicate an immediate respiratory compromise or distress, and thus, this newborn does not require the most urgent assessment compared to others.
Choice B rationale
Acrocyanosis, which is the bluish discoloration of the hands and feet, is a common and usually benign finding in newborns during the first 24 to 48 hours after birth. It is due to immature peripheral circulation and does not indicate an emergency, therefore not requiring the nurse's first assessment.
Choice C rationale
Caput succedaneum is a localized swelling on the newborn's scalp that can cross suture lines, resulting from pressure during birth. While it is a notable finding, it is generally benign and resolves spontaneously within a few days, not indicating an immediate life-threatening condition requiring the first assessment.
Choice D rationale
An axillary temperature of 36° C (96.8° F) is below the normal range for a newborn, which is typically 36.5° C to 37.5° C (96.8° F to 99.5° F). Hypothermia in newborns can lead to significant metabolic demands, increased oxygen consumption, and potential for cold stress, making this newborn the priority for immediate assessment and intervention.
Correct Answer is {"dropdown-group-1":"A","dropdown-group-2":"C"}
Explanation
Based on the 0715 assessment findings, the nurse identifies that the client is at greatest risk for developing postpartum hemorrhage and urinary tract infection.
Rationale for correct answers
Postpartum hemorrhage risk is indicated by a boggy fundus located 2 fingerbreadths above the umbilicus and deviated to the right, signifying uterine atony and bladder distention. Uterine atony causes inadequate contraction, increasing bleeding risk. Normal fundal position is firm, midline, at or below the umbilicus. The client’s saturated perineal pad confirms excessive bleeding. Urinary tract infection risk is suggested by urinary retention signs (urge to urinate but only voiding 50 mL) and straining, increasing bacterial colonization risk. Blood-tinged urine further supports urinary tract irritation or infection. Normal urine output in adults is approximately 0.5 mL/kg/hr; this client’s low output suggests retention.
Rationale for incorrect answers
Postpartum infection (B) and endometritis (C) are possible but less immediately likely; WBC is normal at 7,500/mm³ and temperature is only mildly elevated (37.7°C). Uterine inversion (D) is a rare, acute emergency with a prolapsed uterus, not described here. Endometritis (B) typically presents with fever, uterine tenderness, and elevated WBC, absent here.
Rationale for incorrect answers
Postpartum infection (A) and endometritis (B) again are unlikely given stable WBC and low-grade temperature. Uterine inversion (D) does not correlate with the clinical presentation of a boggy, displaced fundus and urinary retention. The urinary tract infection (C) is most consistent with symptoms of retention, pain, and bloody urine.
Take home points
- Boggy, displaced fundus with heavy bleeding signals uterine atony and postpartum hemorrhage risk.
- Urinary retention increases risk for urinary tract infection post-cesarean birth.
- Mild temperature elevation and normal WBC do not confirm infection but warrant monitoring.
- Differentiating uterine atony from uterine inversion and infection is critical for timely intervention.
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