Nursing Elites

1. A 45-year-old woman has been prescribed conjugated estrogens (Premarin) for the treatment of menopausal symptoms. What should the nurse include in the patient teaching?

• A. Increase fluid intake to prevent dehydration.
• B. Avoid smoking while taking this medication.
• C. Increase the intake of high-calcium foods.
• D. Take the medication at bedtime to prevent insomnia.

Correct answer: B

Rationale: The correct answer is to 'Avoid smoking while taking this medication' because patients taking conjugated estrogens should avoid smoking due to the increased risk of cardiovascular events. Increasing fluid intake to prevent dehydration is a good practice but not specifically related to conjugated estrogens. Increasing the intake of high-calcium foods may be beneficial for bone health but is not directly related to the medication. Taking the medication at bedtime to prevent insomnia is not a specific teaching point for conjugated estrogens.

2. Multiple sclerosis manifests as asymmetrical and in different parts of the body because:

• A. Autoreactive lymphocytes are causing diffuse patchy damage to the myelin sheath in the central nervous system.
• B. Acetylcholine receptors are destroyed by immunoglobulin G.
• C. Autoreactive T lymphocytes cause progressive loss of neurons in the substantia nigra.
• D. Cortical motor cells degenerate.

Correct answer: A

Rationale: The correct answer is A. Multiple sclerosis is characterized by the immune system attacking the myelin sheath in the central nervous system. This attack leads to patchy damage on the myelin sheath, resulting in asymmetrical neurological symptoms. Choices B, C, and D are incorrect because they do not accurately describe the pathophysiology of multiple sclerosis. In multiple sclerosis, it is the autoreactive lymphocytes that target and damage the myelin sheath, not acetylcholine receptors, T lymphocytes, or cortical motor cells.

3. 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.

4. Which manifestation of stress reflects the non-specific fight or flight response?

• A. Decreased pupillary light response
• B. Increased GI motility
• C. Decreased short-term memory
• D. Increased cardiopulmonary rates

Correct answer: D

Rationale: The correct answer is D, 'Increased cardiopulmonary rates.' The fight or flight response, activated by stress, is a non-specific physiological reaction that prepares the body to deal with perceived threats. In this response, the heart rate and breathing rate increase to supply more oxygen to muscles and vital organs, enabling a rapid response in dangerous situations. Choices A, B, and C are incorrect because decreased pupillary light response, increased GI motility, and decreased short-term memory are not typical manifestations of the fight or flight response.

5. Seizures are diagnosed by which of the following?

• A. Electroencephalogram (EEG) and ECG
• B. Seizure symptoms and complete blood count (CBC)
• C. Seizure symptoms and electrocardiogram (ECG)
• D. Seizure symptoms and EEG

Correct answer: D

Rationale: Seizures are most accurately diagnosed by EEG, which measures brain activity. Choice A is incorrect as ECG (electrocardiogram) measures heart activity, not brain activity. Choice B is incorrect as CBC (complete blood count) is a blood test and not used to diagnose seizures. Choice C is incorrect as an ECG (electrocardiogram) also measures heart activity, not brain activity, and is not the primary diagnostic tool for seizures.

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