The nurse, caring for a patient in shock, realizes that the first body organ that will respond to a reduction in circulating blood volume and oxygenation is the
1. left ventricle.
2. hypothalamus.
3. kidneys.
4. right atrium.
4
Rationale: Low-pressure stretch receptors in the right atrium sense a decrease in circulating blood volume when there is a decrease in venous return to the right atrium. The left ventricle does not have any baroreceptors to sense a low circulating blood volume. The hypothalamus is stimulated to release hormones in response to the low circulating volume sensed by the right atrium, aorta, and carotid artery chemoreceptors. The kidneys will conserve water in response to the hormones secreted by the endocrine system.
You might also like to view...
A client admitted to a health care facility with cardiac arrhythmia is prescribed propranolol. Which of the following would the nurse closely monitor as part of the ongoing assessment during the therapy?
A) Pulse rate B) Tendon reflexes C) Hydration D) Visual acuity
A patient you are caring for has returned to her room after vulvar surgery. What would be an important intervention during the initial postoperative period?
A) Placing the patient in high Fowler's position B) Sitz baths are recommended C) Monitoring the surgical site for signs of infection D) Analgesics will be administered on a prn basis
As a result of seizure activity, a computed tomography (CT) scan was performed and showed that an 18-month-old child has intracranial arteriovenous malformation
When developing the child's plan of care, the nurse would expect to implement actions to prevent which of the following? A) Drug interactions B) Developmental disabilities C) Hemorrhagic stroke D) Respiratory paralysis
Julie is a 17-year-old woman who came to the clinic to renew her oral contraceptive pills
During the physical examination, the clinic nurse observes that Julie's lips are cracked and chapped, she has broken blood vessels on her face and her fingers are callused. These findings need to be investigated further with: Select all answers that apply: A) A weight assessment B) Blood work for electrolyte assessment C) Discussion with the health care provider re: bulimia D) Discussion with the health care provider re: anorexia nervosa