Nursing Elites

1. A urine pregnancy test:

• A. May be negative even if a blood pregnancy test is positive.
• B. Is positive only during the first trimester of pregnancy.
• C. Will be negative if the amount of LH isn't enough to meet or exceed the sensitivity of the testing device.
• D. All of the above.

Correct answer: A

Rationale: A urine pregnancy test detects HCG in a pregnant woman's urine. Blood levels of HCG are usually higher and register earlier than HCG levels in the urine. Choice A is correct because urine pregnancy tests may be negative even if a blood pregnancy test is positive due to the differences in HCG levels in blood and urine. Choice B is incorrect because a urine pregnancy test can be positive throughout pregnancy, not just in the first trimester. Choice C is incorrect because LH (luteinizing hormone) is not the hormone detected in a pregnancy test; it is HCG (human chorionic gonadotropin). Choice D is incorrect because not all the statements provided are true.

2. Which of the following is a fat-soluble vitamin?

• A. Vitamin C
• B. Vitamin D
• C. Vitamin B-6
• D. Riboflavin

Correct answer: B

Rationale: The correct answer is Vitamin D. Fat-soluble vitamins are those that can be stored in the body, allowing excess amounts to be stored for later use. While this storage ability can help prevent deficiencies, it also poses a risk of toxicity. The fat-soluble vitamins are A, E, D, and K. Choice A, Vitamin C, is water-soluble, not fat-soluble. Choice C, Vitamin B-6, and Choice D, Riboflavin, are also water-soluble vitamins and not fat-soluble.

3. What is the most important step that healthcare personnel can take to prevent the transmission of microorganisms in the hospital setting?

• A. Wear protective eyewear at all times.
• B. Wear gloves whenever in direct contact with patients.
• C. Wash hands before and after contact with each patient.
• D. Clean the stethoscope with an alcohol swab between patients.

Correct answer: C

Rationale: The most crucial step in preventing the transmission of microorganisms in the hospital setting is proper hand hygiene. Healthcare personnel should wash their hands thoroughly before and after each patient contact to reduce the risk of spreading infections. While cleaning the stethoscope with an alcohol swab between patients is recommended, it is secondary to hand hygiene. Wearing protective eyewear at all times is not necessary for routine patient care unless specifically indicated, and wearing gloves only when in direct contact with patients is important but not as critical as proper handwashing. Therefore, the correct answer is to wash hands before and after contact with each patient.

4. Should standard precautions be used when providing post mortem care to a patient who has died from a massive heart attack and had no other diseases, illnesses, or infections?

• A. Yes, because the patient must be treated with respect
• B. Yes, you still must use standard precautions
• C. No, because the patient had no infections
• D. No, because this is not respectful

Correct answer: B

Rationale: Yes, you must still use standard precautions when providing post mortem care, regardless of the patient's medical history. Standard precautions are essential to prevent the transmission of potential infectious agents and protect both the healthcare provider and others from exposure. Even if the patient did not have known infections, it is crucial to maintain a safe environment and uphold professional standards of care. Choice A is incorrect as using standard precautions is primarily for infection control rather than solely for respect. Choices C and D are incorrect as the absence of infections or the notion of respect does not negate the need for standard precautions in post mortem care.

5. The instructor is teaching a class on basic assessment skills. Which of the following statements is true regarding the stethoscope and its use?

• A. Slope of the earpieces should point forward toward the examiner's nose.
• B. It blocks out extraneous room noise but does not magnify sound.
• C. The tubing length should be 14 to 18 inches to prevent sound distortion.
• D. Both fit and quality of the stethoscope are important.

Correct answer: B

Rationale: The stethoscope does not magnify sound but effectively blocks out extraneous room noises. The correct orientation of the earpieces is with the slope pointing forward toward the examiner's nose, not posteriorly. The tubing length of a stethoscope should ideally be between 14 to 18 inches (36 to 46 cm) to avoid sound distortion. Using tubing longer than this range can distort sound. Both the fit and quality of the stethoscope are crucial for accurate auscultation and assessment, highlighting their significance in clinical practice. Therefore, the correct answer is that the stethoscope blocks out extraneous room noise but does not magnify sound.

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