A nurse is reviewing the results of a biophysical profile for a client who is at 37 weeks of gestation.
Which of the following findings indicates fetal well-being?

Choice A rationale

Hemorrhagic shock results from significant blood loss, leading to decreased circulating blood volume and subsequent hypotension. Therefore, hypertension is not expected; instead, the nurse should anticipate hypotension as a classic sign, indicating the body's compensatory mechanisms are failing to maintain adequate perfusion. Systolic blood pressure below 90 mmHg is a common indicator of shock.

Choice B rationale

Initial compensatory mechanisms in shock, driven by the sympathetic nervous system, usually include tachypnea (increased respiratory rate) to enhance oxygenation and address resulting metabolic acidosis. Bradypnea (abnormally slow respiratory rate, normal 12-20 breaths/min) is a late and ominous sign, reflecting profound central nervous system depression and circulatory failure.

Choice C rationale

Tachycardia (heart rate >100 beats/min) is an early and compensatory sign of hemorrhagic shock, triggered by the release of catecholamines (epinephrine, norepinephrine). The sympathetic nervous system increases the heart rate and contractility to compensate for the reduced stroke volume caused by the hypovolemia and maintain cardiac output and tissue perfusion.

Choice D rationale

Hemorrhagic shock causes a severe reduction in renal blood flow due to vasoconstriction and low systemic pressure. This results in oliguria (urine output <30 mL/hr) or anuria, not polyuria. Decreased urine output is a critical indicator of inadequate perfusion to the kidneys and is a classic finding in progressing shock.

Choice A rationale

Fundal massage is the primary intervention for uterine atony and postpartum hemorrhage to stimulate uterine contraction and tamponade bleeding. However, an amniotic fluid embolism (AFE) is characterized by sudden cardiopulmonary collapse, hypoxia, and coagulopathy, where fundal massage is irrelevant to the underlying pathology.

Choice B rationale

AFE involves the sudden entry of amniotic fluid into the maternal circulation, triggering a massive anaphylactoid reaction, acute respiratory distress, and severe refractory hypotension, leading to cardiac and respiratory arrest. Initiating cardiopulmonary resuscitation (CPR) is often immediately required to support life functions.

Choice C rationale

Assisting the client to empty their bladder may be beneficial during labor to allow the fetal head to descend, but it is not a priority intervention for the life-threatening, acute physiological crisis of an AFE. The immediate focus must be on optimizing oxygenation, circulation, and treating the underlying shock and coagulopathy.

Choice D rationale

AFE causes severe pulmonary vasoconstriction and acute respiratory distress, leading to profound hypoxemia. Applying oxygen at 2 L/min via nasal cannula is insufficient for this level of respiratory compromise; the client requires high-flow oxygen, often nonrebreather mask or mechanical ventilation, to maintain adequate arterial oxygen saturation.