A charge nurse is reinforcing teaching to a group of nurses about hydrostatic pressure. Which of the following should the nurse include as a contributor to hydrostatic pressure?
Excretion of calcium by the kidneys
Osmotic pressure
Pressure exerted by contraction of the heart
Pressure applied by plasma proteins
The Correct Answer is C
A. The excretion of calcium by the kidneys is related to electrolyte balance and bone health but does not directly contribute to hydrostatic pressure in the vasculature.
B. Osmotic pressure is the force exerted by solutes (such as plasma proteins) drawing water into the bloodstream, which opposes hydrostatic pressure. It does not directly contribute to hydrostatic pressure but rather counterbalances it.
C. Hydrostatic pressure is primarily generated by the force of the heart's contraction, which pushes blood through the arteries and capillaries. This pressure drives fluid out of the blood vessels into the surrounding tissues, a crucial process in nutrient and waste exchange.
D. Pressure applied by plasma proteins contributes to oncotic (colloid osmotic) pressure, not hydrostatic pressure. Oncotic pressure pulls fluid into the capillaries, opposing the outward force of hydrostatic pressure.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
A. Repeating the same question over and over: This behavior might indicate confusion or lack of understanding but is not a typical anticipated outcome of education. Effective education should lead to better understanding rather than repeated questions.
B. Awareness of COPD manifestations: An anticipated outcome of education for a client with COPD is increased awareness of their condition and its manifestations. This knowledge helps the client manage their symptoms and recognize exacerbations early.
C. Anxiety and restlessness: While some anxiety might be present, effective education aims to reduce anxiety by providing information and strategies for managing COPD. The goal is to increase confidence and knowledge, which can help mitigate anxiety.
D. Motivation and engagement of the client: While motivation and engagement are positive outcomes, they are not the primary focus of initial educational interventions. The primary goal is to ensure that the client is aware of their condition and understands how to manage it effectively.
Correct Answer is B
Explanation
A. Bradypnea, or abnormally slow breathing, is not typically associated with hypoxia. Hypoxia usually triggers an increase in respiratory rate (tachypnea) as the body attempts to take in more oxygen to meet its needs.
B. Cyanosis, a bluish discoloration of the skin and mucous membranes, is a key sign of hypoxia. It occurs when there is insufficient oxygen in the blood, leading to a darker color of deoxygenated hemoglobin. Cyanosis is most commonly observed in the lips, fingertips, and toes.
C. Pallor, or paleness of the skin, can occur in various conditions but is not specific to hypoxia. It is more commonly associated with anemia or shock rather than low oxygen levels in the blood.
D. Bradycardia, or a slower-than-normal heart rate, is not typically a manifestation of hypoxia. Instead, hypoxia often causes tachycardia as the body attempts to increase oxygen delivery to tissues by pumping blood more quickly.
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