When assessing a newborn immediately after birth, which concept should the nurse keep in mind?
A) Pulmonary pressures rise.
B) Left atrial pressure rises.
C) Right atrial pressure rises.
D) Systemic vascular resistance falls.
B) Left atrial pressure rises.
Explanation: A) At birth, the infant takes its first breath, which reduces the pulmonary pressures as the pulmonary vasculature dilates in response to the change in the partial pressure of oxygen. Pulmonary blood flow increases as pulmonary pressure decreases, as does the increased blood flow to the left atrium as the left atrial pressure increases. After the umbilical cord has been cut, systemic vascular resistance increases in response to the decrease in the right atrial pressures.
B) At birth, the infant takes its first breath, which reduces the pulmonary pressures as the pulmonary vasculature dilates in response to the change in the partial pressure of oxygen. Pulmonary blood flow increases as pulmonary pressure decreases, as does the increased blood flow to the left atrium as the left atrial pressure increases. After the umbilical cord has been cut, systemic vascular resistance increases in response to the decrease in the right atrial pressures.
C) At birth, the infant takes its first breath, which reduces the pulmonary pressures as the pulmonary vasculature dilates in response to the change in the partial pressure of oxygen. Pulmonary blood flow increases as pulmonary pressure decreases, as does the increased blood flow to the left atrium as the left atrial pressure increases. After the umbilical cord has been cut, systemic vascular resistance increases in response to the decrease in the right atrial pressures.
D) At birth, the infant takes its first breath, which reduces the pulmonary pressures as the pulmonary vasculature dilates in response to the change in the partial pressure of oxygen. Pulmonary blood flow increases as pulmonary pressure decreases, as does the increased blood flow to the left atrium as the left atrial pressure increases. After the umbilical cord has been cut, systemic vascular resistance increases in response to the decrease in the right atrial pressures.
You might also like to view...
A patient in a hospice for palliative care for lung cancer that has metastasized to the liver and bones is experiencing dyspnea. What might help to relieve the dyspnea?
A) A fluid bolus B) High-flow oxygen to treat low oxygen saturation C) High doses of opioids D) Administration of corticosteroids as ordered
A group of nursing students are reviewing information about aminoglycosides. The students demonstrate understanding when they identify which of the following as an example? Select all that apply
A) Amikacin (Amikin) B) Amoxicillin (Amoxil) C) Vancomycin (Vancocin) D) Kanamycin (Kantrex) E) Azithromycin (Zithromax)
Cardiac tamponade is suspected in a patient diagnosed with pericarditis. What assessment data would assist the nurse in determining the presence of this complication?
1. Changes in systolic blood pressure during inspiration 2. Arterial blood gases 3. The rhythm of the pulse in relation to inspiration and expiration 4. A cardiac murmur that occurs during systole
A nurse, when caring for a client, notes that the specific gravity of the client's urine is
low. What could have lead to the low specific gravity of urine? A) Frequent vomiting B) Excess fluid intake C) Repeated diarrhea D) Urine retention