Nursing Elites

1. What are direct effects of antibodies? (Select all that apply):

• A. Neutralization
• B. Agglutination
• C. Precipitation
• D. Phagocytosis

Correct answer: A, B, C

Rationale: The direct effects of antibodies include neutralization, agglutination, and precipitation. Antibodies neutralize pathogens by binding to them and preventing their harmful effects. Agglutination involves the clumping together of pathogens, making it easier for phagocytes to engulf them. Precipitation refers to the process where antibodies bind to soluble antigens, forming large complexes that are easily removed from the body. Phagocytosis, on the other hand, is an indirect effect of antibodies where phagocytes engulf and destroy pathogens opsonized by antibodies, not a direct effect.

2. When a Tae Kwon Do (TKD) master applies downward pressure just above the elbow joint on an attacker who immediately collapses to the ground, which reflex is applicable to this example?

• A. Golgi tendon reflex
• B. Myotatic reflex
• C. Withdrawal reflex
• D. Crossed-extensor reflex

Correct answer: A

Rationale: The Golgi tendon reflex is the correct answer. This reflex protects the muscle and tendons from excessive force by causing the muscle to relax. In this scenario, the downward pressure applied just above the elbow joint triggers the Golgi tendon reflex, resulting in the attacker's collapse. The other options are incorrect: - The myotatic reflex (also known as the stretch reflex) is responsible for contracting a muscle in response to its stretch, not relaxing it. - The withdrawal reflex is a spinal reflex that moves a body part away from a painful stimulus, not directly related to the scenario described. - The crossed-extensor reflex is a reflex that occurs on the opposite side of the body in response to a withdrawal reflex, which is not the case in this situation.

3. A patient with breast cancer is prescribed tamoxifen (Nolvadex). What should the nurse emphasize during patient education?

• A. Tamoxifen may increase the risk of venous thromboembolism, so patients should be aware of the signs and symptoms of blood clots.
• B. Tamoxifen may cause weight gain, so patients should monitor their diet.
• C. Tamoxifen may cause hot flashes and other menopausal symptoms.
• D. Tamoxifen may decrease the risk of osteoporosis, so patients should ensure adequate calcium intake.

Correct answer: A

Rationale: The correct answer is A. Tamoxifen increases the risk of venous thromboembolism, a serious side effect. Therefore, patients should be educated about the signs and symptoms of blood clots, such as swelling, pain, and redness in the legs, and advised to seek immediate medical attention if they occur. Choice B is incorrect because weight gain is not a significant side effect of tamoxifen. Choice C is incorrect because hot flashes and menopausal symptoms are common side effects of tamoxifen but are not as critical to address as venous thromboembolism. Choice D is incorrect because tamoxifen does not decrease the risk of osteoporosis; in fact, it may increase the risk of bone loss in premenopausal women.

4. The parents of a 4-year-old girl have sought care because their daughter has admitted to chewing and swallowing imported toy figurines that have been determined to be made of lead. Which of the following blood tests should the care team prioritize?

• A. White blood cell levels with differential
• B. Red blood cell levels and morphology
• C. Urea and creatinine levels
• D. Liver function panel

Correct answer: B

Rationale: The correct answer is B: Red blood cell levels and morphology. Lead poisoning primarily affects red blood cells, causing anemia. Therefore, the priority test would be to assess red blood cell levels and morphology. Choice A (White blood cell levels with differential) is incorrect as lead poisoning does not primarily affect white blood cells. Choice C (Urea and creatinine levels) is unrelated to lead poisoning and not a priority in this scenario. Choice D (Liver function panel) is also not the priority as lead poisoning's primary impact is on the red blood cells, not the liver.

5. What long-term risks should the nurse discuss with a patient starting on hormone replacement therapy (HRT)?

• A. HRT is associated with increased risks of cardiovascular events and breast cancer, so these risks should be discussed with the patient.
• B. HRT can improve mood and energy levels, but it also increases the risk of osteoporosis.
• C. HRT can increase the risk of venous thromboembolism, so patients should undergo regular screening.
• D. HRT decreases the risk of fractures, but it also increases the risk of developing diabetes.

Correct answer: A

Rationale: The correct answer is A. When starting on hormone replacement therapy (HRT), the nurse should discuss the increased risks of cardiovascular events and breast cancer with the patient. These risks are important to consider to make an informed decision. Choice B is incorrect as HRT does not increase the risk of osteoporosis; in fact, it may help prevent it. Choice C is incorrect as while HRT can increase the risk of venous thromboembolism, regular screening is not the primary focus for discussion. Choice D is incorrect as HRT does not decrease the risk of fractures and is not primarily associated with an increased risk of developing diabetes.

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