Nursing Elites

1. Which statement correctly describes the concept of ionization energy?

• A. The energy required to remove an electron from an outermost shell.
• B. The energy released when an electron bonds with an atom.
• C. The total energy possessed by all electrons in an atom.
• D. The energy needed to change an atom's nucleus.

Correct answer: A

Rationale: The energy required to remove an electron from an outermost shell. Ionization energy varies depending on the element and electron configuration, indicating its difficulty to lose electrons and influencing its reactivity.

2. One staff suggests that they review the pattern of nursing care that they are using, which is

• A. job description
• B. system used to deliver care
• C. manual of procedure
• D. rules to be followed

Correct answer: B

Rationale: The correct answer is B: 'system used to deliver care.' When a staff member suggests reviewing the pattern of nursing care being used, they are referring to the overall system or method in place for delivering care to patients. This includes the processes, protocols, and techniques used to provide nursing care. It goes beyond just following a job description, manual of procedure, or rules. By evaluating and potentially revising the system used to deliver care, staff can ensure that best practices are in place to provide high-quality and effective care to patients.

3. How is power related to work and time?

• A. Power = Work ÷ Time
• B. Power = Work × Time
• C. Power = Work + Time
• D. Power = Work - Time

Correct answer: a

Rationale: Power is calculated as the amount of work done or energy transferred per unit of time.

4. What is the periodic law?

• A. The statement that the properties of the elements are a periodic function of their atomic numbers.
• B. The statement that the elements can be arranged in a table in which elements with similar properties are grouped together
• C. The statement that the elements can be arranged in a table in which the atomic number of an element is equal to the number of protons in its nucleus
• D. The statement that the elements can be arranged in a table in which the atomic mass of an element is equal to the number of neutrons in its nucleus.

Correct answer: A

Rationale: The periodic law states that the properties of elements are a periodic function of their atomic numbers. This means that when elements are arranged in order of increasing atomic number, there is a periodic repetition of their properties. This forms the basis for the modern periodic table. Option B describes the periodic table itself, while options C and D do not accurately describe the periodic law.

5. Lymph nodes, found along lymphatic vessels, are important for:

• A. Storing blood
• B. Producing antibodies
• C. Filtering lymph and trapping harmful substances
• D. All of the above

Correct answer: D

Rationale: The correct answer is D, 'All of the above.' Lymph nodes are important for various functions in the immune system. They filter lymph, trapping harmful substances like bacteria and viruses, which helps in preventing infections. Lymph nodes also play a crucial role in producing antibodies, which are essential for fighting off pathogens. Additionally, lymph nodes do not store blood; that is the function of the spleen. Therefore, the correct answer is D because lymph nodes perform all the mentioned functions in supporting the body's immune response.

6. What is the term for the pressure exerted by blood against the walls of blood vessels?

• A. Heart rate
• B. Blood pressure
• C. Cardiac output
• D. Stroke volume

Correct answer: B

Rationale: The correct answer is B: Blood pressure. Blood pressure is the term used to describe the force or pressure exerted by blood against the walls of blood vessels. It is typically measured in millimeters of mercury (mmHg) and consists of two main components - systolic pressure (the pressure when the heart is contracting) and diastolic pressure (the pressure when the heart is relaxed). Heart rate (A) refers to the number of times the heart beats per minute and is not specifically related to the pressure against blood vessel walls. Cardiac output (C) is the volume of blood pumped by the heart per minute, while stroke volume (D) is the volume of blood pumped by the heart in a single contraction. These are related to heart function but not specifically to the pressure against blood vessel walls.

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