Nursing Elites

1. A middle-aged man who has a 35-year smoking history presents to the emergency department confused and short of breath. Before starting oxygen, these baseline arterial blood gases (ABGs) are obtained: pH=7.25, pCO2=50 mmHg, HCO3=30 mEq/L. These findings indicate to the nurse that the client is experiencing which acid-base imbalance?

• A. Metabolic acidosis.
• B. Respiratory acidosis.
• C. Metabolic alkalosis.
• D. Respiratory alkalosis.

Correct answer: B

Rationale: The ABG results show a low pH (acidosis) and increased pCO2, indicating respiratory acidosis. In respiratory acidosis, the lungs cannot remove enough CO2, leading to its accumulation in the blood. This often occurs in conditions like COPD and is consistent with the patient's smoking history. Metabolic acidosis (choice A) is characterized by low pH and low HCO3 levels. Metabolic alkalosis (choice C) is marked by high pH and high HCO3 levels. Respiratory alkalosis (choice D) presents with high pH and low pCO2.

2. What assessment findings should lead the nurse to suspect Down syndrome in a newborn?

• A. Hypertonia and dark skin
• B. Low-set ears and a simian crease
• C. Inner epicanthal folds and a high, domed forehead
• D. Long, thin fingers and excessive hair

Correct answer: B

Rationale: The correct answer is B: 'Low-set ears and a simian crease.' These are key physical characteristics commonly seen in newborns with Down syndrome. Low-set ears, along with a simian crease (a single palmar crease), are indicative of Down syndrome. Choices A, C, and D are incorrect because hypertonia, dark skin, inner epicanthal folds, a high, domed forehead, long, thin fingers, and excessive hair are not specific features associated with Down syndrome in newborns. Therefore, the presence of low-set ears and a simian crease should raise suspicion for Down syndrome and prompt further evaluation.

3. The parents of a child who has had a myringotomy are instructed by the nurse to place the child in which position?

• A. Supine
• B. On the affected side
• C. On the unaffected side
• D. In Trendelenburg's position

Correct answer: B

Rationale: Placing the child on the affected side after a myringotomy facilitates ear drainage. This position helps prevent accumulation of fluids in the ear canal, aiding in the healing process. Placing the child in the supine position (Choice A) or on the unaffected side (Choice C) may not be as effective in promoting drainage. The Trendelenburg's position (Choice D) with the head lower than the body is used for conditions requiring increased venous return, not for post-myringotomy care.

4. While planning care for a client with carpal tunnel syndrome, the nurse identifies a collaborative problem of pain. What is the etiology of this problem?

• A. Irritation of nerve endings
• B. Diminished blood flow
• C. Ischemic tissue changes
• D. Compression of a nerve

Correct answer: D

Rationale: The correct answer is D: Compression of a nerve. In carpal tunnel syndrome, pain arises from the compression of the median nerve within the carpal tunnel. This compression leads to symptoms such as pain, numbness, and tingling in the hand and arm. Choices A, B, and C are incorrect because carpal tunnel syndrome pain is primarily caused by the physical compression of the nerve, rather than irritation of nerve endings, diminished blood flow, or ischemic tissue changes.

5. During a home visit, the nurse assesses the skin of a client with eczema who reports that an exacerbation of symptoms has occurred during the last week. Which information is most useful in determining the possible cause of the symptoms?

• A. An old friend with eczema came for a visit.
• B. Recently received an influenza immunization.
• C. A grandson and his new dog recently visited.
• D. Corticosteroid cream was applied to eczema.

Correct answer: C

Rationale: The correct answer is C. Contact with the grandson's new dog could have introduced new allergens or irritants, exacerbating the eczema symptoms. Choice A is unrelated to the exacerbation of symptoms. Choice B, receiving an influenza immunization, is unlikely to directly cause an exacerbation of eczema symptoms. Choice D, applying corticosteroid cream, is a common treatment for eczema and would not likely be the cause of the exacerbation.

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