Nursing Elites

1. Which of the following colligative properties refers to the elevation of the boiling point of a solution?

• A. Freezing point depression
• B. Vapor pressure lowering
• C. Osmotic pressure
• D. Boiling point elevation

Correct answer: A

Rationale: The correct answer is A: Freezing point depression. Colligative properties are properties that depend on the number of solute particles in a solution, not the type of solute. Freezing point depression is the phenomenon where the freezing point of a solvent is lowered when a solute is added, while boiling point elevation is the opposite effect where the boiling point of a solution is raised. Therefore, the question specifically asked for the colligative property that refers to the elevation of the boiling point, making "Freezing point depression" the correct answer.

2. Which of the following terms refers to the abnormal sound heard during a stethoscope examination, potentially indicating a heart valve issue?

• A. Tachycardia
• B. Bradycardia
• C. Heart murmur
• D. Arrhythmia

Correct answer: D

Rationale: The correct answer is D: Arrhythmia. An arrhythmia refers to an irregular heart rhythm, which can manifest as abnormal sounds heard during a stethoscope examination. Tachycardia (A) and bradycardia (B) both pertain to heart rate abnormalities, with tachycardia indicating a fast heart rate and bradycardia a slow heart rate. However, these terms do not specifically relate to abnormal sounds. Heart murmur (C) is the term that refers to the abnormal sound heard during a stethoscope examination, potentially indicating a heart valve issue. Therefore, the correct answer is D as it best fits the description provided in the question.

3. In the process of osmosis, the solvent moves from an area of...

• A. Low solute concentration to high solute concentration
• B. Hotter solution to colder solution
• C. Colder solution to hotter solution
• D. High solute concentration to low solute concentration

Correct answer: D

Rationale: In osmosis, solvent molecules move across a semi-permeable membrane from an area of low solute concentration to high solute concentration. This movement is driven by the desire to equalize the concentration of solutes on both sides of the membrane. As a result, option A is the correct answer because the solvent will naturally flow towards the area with a higher concentration of solutes in order to balance the concentrations on both sides of the membrane. Options B and C are incorrect as osmosis is not influenced by temperature differences. Option D is incorrect as the solvent does not move towards areas of high solute concentration in osmosis.

4. What is the term for a solution that contains the maximum amount of solute that can dissolve at a specific temperature and pressure?

• A. Saturated solution
• B. Unsaturated solution
• C. Dilute solution
• D. Concentrated solution

Correct answer: A

Rationale: A saturated solution is one in which the maximum amount of solute has dissolved under specific conditions. The other choices do not accurately describe a saturated solution.

5. Which of the following is a condition characterized by inflammation and narrowing of the airways, leading to symptoms such as wheezing, coughing, and shortness of breath?

• A. Pneumonia
• B. Tuberculosis
• C. Asthma
• D. Emphysema

Correct answer: C

Rationale: The correct answer is C: Asthma. Asthma is a chronic condition that involves inflammation and narrowing of the airways, leading to symptoms like wheezing, coughing, and shortness of breath. Pneumonia (A) is an infection of the lungs, not a chronic inflammatory condition like asthma. Tuberculosis (B) is a bacterial infection that primarily affects the lungs and does not typically manifest with symptoms like wheezing. Emphysema (D) is a lung condition characterized by damage to the air sacs in the lungs, not inflammation and narrowing of the airways like asthma.

6. What is the formula to calculate gravitational potential energy near the Earth's surface?

• A. Potential Energy=Mass×Acceleration
• B. Potential Energy=Force×Distance
• C. Potential Energy=Mass×Height×Gravity
• D. Potential Energy=Mass×Acceleration due to gravity×Height

Correct answer: d

Rationale: Gravitational potential energy near the Earth's surface is given by the formula PE = � × � × ℎ PE=m×g×h, where � m is mass, � g is acceleration due to gravity, and ℎ h is heigh

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