What is the earliest sign of shock that the nurse would monitor for during a routine assessment?

Restlessness

Pale skin

Complaints of thirst

Complaints of nausea

Answer and Explanation

The Correct Answer is A

A) Restlessness.
Restlessness is often one of the earliest signs of shock. It reflects the body's attempt to compensate for decreased tissue perfusion and oxygen delivery by increasing sympathetic nervous system activity. Restlessness may manifest as agitation, fidgeting, or an inability to sit still. It is an important clinical indicator that suggests impending hemodynamic instability and warrants prompt assessment and intervention.

B) Pale skin:
Pale skin is a common sign of shock, but it may not always be the earliest manifestation. Pale skin typically occurs later in the progression of shock as vasoconstriction occurs, redirecting blood flow away from the skin to vital organs in an attempt to maintain perfusion.

C) Complaints of thirst:
While complaints of thirst may indicate dehydration or fluid loss, they are not typically considered the earliest sign of shock. Thirst usually occurs after the body has already begun to experience fluid deficit and may not be apparent until shock is more advanced.

D) Complaints of nausea:
Nausea may occur in shock due to decreased perfusion to the gastrointestinal tract, but it is not usually the earliest sign. Nausea may develop as shock progresses and metabolic disturbances worsen, but it is often preceded by other symptoms such as restlessness or altered mental status.

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Free Nursing Study Resources

Correct Answer is A

Explanation

A) "Ventilation is the process of moving air into and out of the lungs."
Ventilation refers to the mechanical process of breathing, which involves the movement of air into and out of the lungs. During ventilation, air containing oxygen is drawn into the lungs through inhalation (inspiration), and carbon dioxide-rich air is expelled from the lungs through exhalation (expiration). This process facilitates the exchange of gases (oxygen and carbon dioxide) between the lungs and the external environment.

B) "Ventilation is taking a breath in."
This statement is too simplistic and does not fully encompass the process of ventilation, which includes both inhalation and exhalation. Ventilation involves not only taking a breath in but also the subsequent process of exhaling.

C) "Ventilation is the blood flow through the lung."
This statement describes perfusion, which is the process of blood flow through the lung's blood vessels, rather than ventilation, which involves air movement in and out of the lungs. Ventilation and perfusion are closely related but distinct processes.

D) "Ventilation is the process by which gases are exchanged."
While ventilation facilitates gas exchange, this statement does not fully capture the mechanical aspect of moving air into and out of the lungs, which is the primary function of ventilation. Gas exchange occurs in the alveoli of the lungs, where oxygen diffuses into the bloodstream, and carbon dioxide diffuses out of the bloodstream, but ventilation refers specifically to the movement of air.

A. Lowered heart rate B. Decreased conduction through the AV node C. Increased urine output D. Vasoconstriction of renal blood vessels

Correct Answer is C

Explanation

A) Lowered heart rate:
Dopamine typically increases heart rate as it acts on beta-adrenergic receptors in the heart, leading to increased cardiac contractility and chronotropy. However, at low doses, the effect on heart rate may be minimal compared to higher doses.

B) Decreased conduction through the AV node:
Dopamine may have minimal effects on conduction through the atrioventricular (AV) node, especially at low doses. It primarily acts on adrenergic receptors to increase cardiac contractility and heart rate.

C) Increased urine output.
Dopamine is a medication commonly used to treat shock by improving cardiac output and blood pressure. At low doses, dopamine primarily acts on dopamine receptors in the renal blood vessels, causing vasodilation and increased renal blood flow. This increased renal blood flow leads to increased glomerular filtration rate (GFR) and urine output. Therefore, increased urine output is an expected effect of dopamine infusion at low doses in the treatment of shock.

D) Vasoconstriction of renal blood vessels:
At low doses, dopamine primarily acts on dopamine receptors in the renal blood vessels, causing vasodilation and increased renal blood flow. Vasoconstriction of renal blood vessels is more commonly associated with higher doses of dopamine or with other vasopressor medications such as norepinephrine or phenylephrine.

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What is the earliest sign of shock that the nurse would monitor for during a routine assessment?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A client asks the nurse what ventilation is. What is the most appropriate response by the nurse?

Correct Answer is A

Explanation

A nurse is assisting in the care of a client who is receiving a dopamine infusion at a low dose for treatment of shock. Which of the following findings is an expected effect of this medication?

Correct Answer is C

Explanation

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