Nokea
The nurse is caring for a client in the compensation stage of shock. The nurse knows that one of the body's mechanisms of compensation in this stage of shock is the renin- angiotensin-aldosterone system. What does this system do?
- A. Decreases peripheral blood flow
- B. Increases catecholamine secretion
- C. Increases the production of antidiuretic hormone
- D. Restores blood pressure
Correct Answer: D
Rationale: The renin-angiotensin-aldosterone system is a mechanism that restores blood pressure (BP) when circulating volume is diminished. It does not decrease peripheral blood flow, increase catecholamine secretion, or increase the production of antidiuretic hormone.
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The nurse is caring for a client in septic shock. The nurse knows to closely monitor the client. What finding would the nurse observe when the client's condition is in its initial stages?
- A. A rapid, bounding pulse
- B. A slow but steady pulse
- C. A weak and thready pulse
- D. A slow and imperceptible pulse
Correct Answer: A
Rationale: A rapid, bounding pulse is observed in a client in the initial stages of septic shock. In case of hypovolemic shock, the pulse volume becomes weak and thready and circulating volume diminishes in the initial stage. In the later stages when the circulating volume has severely diminished, the pulse becomes slow and imperceptible, and pulse rhythm changes from regular to irregular.
The nurse is initiating intravenous therapy for a client who is in shock. Which ratio of fluid to fluid lost is anticipated?
- A. 1:01
- B. 2:01
- C. 3:01
- D. 4:01
Correct Answer: C
Rationale: Usually, a ratio of $3 \mathrm{~L}$ of fluid is administered for every $1 \mathrm{~L}$ of fluid lost.
A client is in a driving accident creating a spinal cord injury. The nurse caring for a client realizes that the client is at risk for which type of shock?
- A. Anaphylactic
- B. Neurogenic
- C. Septic
- D. Obstructive
Correct Answer: B
Rationale: Neurogenic shock results from an insult to the vasomotor center of the medulla or to the peripheral nerves that extend from the spinal cord to the blood vessels. The tone of the sympathetic nervous system is impaired, resulting in deceased arterial vascular resistance, vasodilation, and hypotension. Anaphylactic shock has vasodilation also as a key characteristic, along with increased capillary permeability, swelling of the airway, hives, and itching. Septic shock is associated with overwhelming bacterial infections. Obstructive shock is when there is an interference of blood flow in and out of the heart.
The nurse is caring for a motor vehicle accident client who is unresponsive on arrival to the emergency department. The client has numerous fractures, internal abdominal injuries, and large lacerations on the head and torso. The family arrives and seeks update on the client's condition. A family member asks, 'What causes the body to go into shock?' Given the client's condition, which statement is most correct?
- A. The client is in shock because the blood volume has decreased in the system.'
- B. The client is in shock because the heart is unable to circulate the body fluids.'
- C. The client is in shock because your loved one is not responding and brain dead.'
- D. The client is in shock because all peripheral blood vessels have massively dilated.'
Correct Answer: A
Rationale: Shock is a life-threatening condition that occurs when arterial blood flow and oxygen delivery to tissues and cells are inadequate. Hypovolemic shock, where the volume of extracellular fluid is significantly diminished due to the loss of or reduced blood or plasma, frequently occurs with accidents.
The community health nurse finds the client collapsed outdoors. The nurse assesses that the client is shallow breathing and has a weak pulse. Emergency medical services (EMS) is notified by the neighbor. Which nursing action is helpful while waiting for the ambulance?
- A. Place a cool compress on head.
- B. Elevate the legs higher than the heart.
- C. Shake the client to arouse.
- D. Cover the client with a blanket.
Correct Answer: B
Rationale: The client has shallow respiration and a weak pulse implying limited circulation and gas exchange. Most helpful would be to elevate the legs higher than the heart to promote blood perfusion to the heart, lungs, and brain. A cool compress would not be helpful nor would shaking the client to arouse. A client can be covered with a blanket, but this is not the most helpful.