Premature infants who exhibit 5 to 10 seconds of respiratory pauses followed by 10 to 15 seconds of compensatory rapid respiration are:.

The presence or absence of anxiety is a noninvasive assessment that the RN would perform to evaluate the patient’s psychological status and possible signs of hypovolemic shock.

Anxiety can indicate reduced cerebral perfusion due to blood loss and low blood pressure.

Choice A is wrong because pulse oximetry is a noninvasive assessment that the RN would perform to measure the oxygen saturation of the patient’s blood, not the circulatory status.

Choice B is wrong because heart sounds are a noninvasive assessment that the RN would perform to auscultate the cardiac rhythm and rate of the patient, not the circulatory status.

Choice C is wrong because arterial pulses are a noninvasive assessment that the RN would perform to palpate the strength and quality of the patient’s peripheral pulses, not the circulatory status.

Choice D is wrong because skin color, temperature, and turgor are noninvasive assessments that the RN would perform to observe the skin integrity and hydration of the patient, not the circulatory status.

Normal ranges for pulse oximetry are 95% to 100%, for heart rate, are 60 to 100 beats per minute, and for blood pressure are 120/80 mmHg.

Uterine atony.

This is when the uterus does not contract enough to stop the bleeding from the placental site after delivery. It is the most common cause of postpartum hemorrhage, accounting for up to 80% of cases. Uterine atony can be caused by factors such as prolonged or augmented labor, large baby, multiple pregnancies, infection, or retained placenta.

The woman in question has some risk factors for uterine atony, such as a large baby and augmentation of labor with Pitocin.

The other choices are wrong because:

A . Retained placental fragments: This is when parts of the placenta remain attached to the uterine wall and prevent it from contracting properly. It is the second most common cause of postpartum hemorrhage.

However, there is no indication in the question that the woman had any difficulty with the delivery of the placenta or that it was incomplete

B. Unrepaired vaginal lacerations: This is when there are tears or cuts in the vagina or cervix that cause bleeding. It is a less common cause of postpartum hemorrhage.

However, there is no indication in the question that the woman had any trauma during delivery or that she was examined for lacerations

D. Puerperal infection: This is when there is an infection in the uterus or other parts of the reproductive tract after delivery.

It can cause fever, pain, and bleeding. It is a rare cause of postpartum hemorrhage.

However, there is no indication in the question that the woman had any signs or symptoms of infection, such as fever, chills, or foul-smelling discharge.

Normal ranges for blood loss after delivery are less than 500 mL for vaginal birth and less than 1000 mL for C-section.

Any amount above these thresholds can be considered postpartum hemorrhage and requires prompt evaluation and treatment.