Nursing Elites

1. 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.

2. A patient has developed a decubitus ulcer on the coccyx. What defense mechanism is most affected by this homeostatic change?

• A. The mucous membrane is affected.
• B. The respiratory tract is affected.
• C. The skin is affected.
• D. The gastrointestinal tract is affected.

Correct answer: C

Rationale: In this scenario, a decubitus ulcer on the coccyx indicates a breakdown of the skin's integrity due to prolonged pressure. The skin is the primary defense mechanism of the body against external pathogens. When the skin is compromised, it can lead to infections and other complications. The mucous membrane (Choice A) plays a role in protecting internal surfaces, not the skin. The respiratory tract (Choice B) is involved in breathing and not directly related to the skin's defense. The gastrointestinal tract (Choice D) is responsible for digestion and absorption of nutrients, not the primary defense mechanism against external threats like the skin.

3. When caring for a patient with systemic lupus erythematosus (SLE), the disease the nurse is dealing with is an example of:

• A. Autoimmunity
• B. Alloimmunity
• C. Homoimmunity
• D. Alleimmunity

Correct answer: A

Rationale: When a nurse cares for a patient with systemic lupus erythematosus (SLE), the nurse is dealing with an autoimmune disease. In autoimmune diseases like SLE, the immune system mistakenly attacks the body's own tissues. Choice A, 'Autoimmunity,' is the correct answer because SLE is an example of the immune system attacking self-antigens, leading to tissue damage and inflammation. Choices B, C, and D are incorrect. Alloimmunity refers to the immune response against foreign antigens from members of the same species, homoimmunity is not a recognized term in immunology, and alleimmunity is not a valid term in this context.

4. A patient is administered isoniazid (INH) for tuberculosis. Which of the following adverse effects will result in discontinuation of the medication?

• A. Weight gain
• B. Jaundice
• C. Fever
• D. Arthralgia

Correct answer: B

Rationale: The correct answer is B: Jaundice. Isoniazid (INH) is known to cause hepatotoxicity, which can manifest as jaundice. Jaundice is a serious adverse effect that warrants immediate discontinuation of the medication to prevent further liver damage. Weight gain, fever, and arthralgia are not typically associated with isoniazid use and would not necessitate discontinuation of the medication.

5. Which immunoglobulin is the first to appear in response to a new antigen?

• A. IgA
• B. IgG
• C. IgE
• D. IgM

Correct answer: D

Rationale: The correct answer is IgM. IgM is the first immunoglobulin to appear in response to a new antigen. It is produced initially during the primary immune response. IgA is mainly found in mucosal areas and secretions. IgG is produced in a secondary immune response and is the most abundant immunoglobulin in the bloodstream. IgE is involved in allergic reactions and parasitic infections, not the initial response to a new antigen.

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