Nursing Elites

1. Which of the following lab values is associated with a decreased risk of cardiovascular disease?

• A. high HDL cholesterol
• B. low HDL cholesterol
• C. low total cholesterol
• D. low triglycerides

Correct answer: B

Rationale: High HDL cholesterol is associated with a decreased risk of cardiovascular disease because HDL cholesterol is known as 'good' cholesterol. It helps remove other forms of cholesterol, like LDL cholesterol, from the bloodstream, reducing the risk of plaque buildup in the arteries. Low HDL cholesterol (Choice B) is actually a risk factor for cardiovascular disease because it means there is less of the 'good' cholesterol to perform its protective functions. Low total cholesterol (Choice C) and low triglycerides (Choice D) are not necessarily associated with a decreased risk of cardiovascular disease, as the balance and types of cholesterol play a more crucial role in heart health.

2. Which of the following indicates a hazard for a client on oxygen therapy?

• A. A 'No Smoking' sign is on the door.
• B. The client is wearing a synthetic gown.
• C. Electrical equipment is grounded.
• D. Matches are removed.

Correct answer: B

Rationale: The correct answer is that the client is wearing a synthetic gown. A synthetic gown might generate sparks of static electricity, which can be a fire hazard, especially in the presence of oxygen. Clients on oxygen therapy should wear cotton gowns to minimize the risk of fire. The other options are not hazards for a client on oxygen therapy: having a 'No Smoking' sign on the door promotes safety by preventing smoking, ensuring electrical equipment is grounded reduces the risk of electrical hazards, and removing matches decreases the risk of fire hazards.

3. While observing a client using crutches for a leg injury, which action would indicate a need for more education by the LPN?

• A. The client places the top padding 1-2 inches below the axilla with a firm grip on the handles.
• B. The client rests the axilla on the top padding and loosely grips the handles with hands.
• C. The client has a slight bend in the elbow when using the handles.
• D. When going down the stairs, the client leads with the injured leg.

Correct answer: B

Rationale: The correct answer is B. Resting the axilla on the top padding can cause nerve damage; instead, the client should place the top padding 1-2 inches below the axilla with a firm grip on the handles for proper support and stability while using crutches. Having a slight bend in the elbow when using the handles (choice C) is a correct technique to ensure proper weight distribution. Leading with the uninjured leg when going down the stairs (choice D) is the correct way to maintain balance and prevent further injury to the injured leg. Therefore, choice B indicates a need for more education to prevent potential nerve damage and ensure safe crutch use.

4. Which hormone in the urine is specifically indicative of pregnancy?

• A. estrogen
• B. progesterone
• C. testosterone
• D. human chorionic gonadotropin

Correct answer: D

Rationale: Human chorionic gonadotropin is the hormone specifically indicative of pregnancy as it is produced by the placenta after implantation. It can be detected in urine and blood samples to confirm pregnancy. Estrogen and progesterone play crucial roles in the menstrual cycle and pregnancy but are not specific indicators of pregnancy on their own. Testosterone is a hormone primarily associated with male reproductive functions and is not directly related to pregnancy, making it an incorrect choice in this context.

5. The nurse is teaching a client about communicable diseases and explains that a portal of entry is:

• A. a vector.
• B. a source, like contaminated water.
• C. food.
• D. the respiratory system.

Correct answer: D

Rationale: The correct answer is 'the respiratory system.' A portal of entry is the path through which a microorganism enters the body. In the case of communicable diseases, the respiratory system can serve as a portal of entry for pathogens such as viruses or bacteria. Choices A, B, and C are incorrect. A 'vector' is an organism that transmits disease, not the entry point for pathogens. Contaminated water or food can act as sources or reservoirs of disease-causing microorganisms, not portals of entry.

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