Correct Answer: B

Rationale: The correct answer is B: Tenderness, warmth, and swelling at the site. Post-operative wound infection often presents with localized tenderness, warmth, and swelling due to inflammation and immune response. Redness, heat, and purulent drainage (choice A) can also indicate infection but are not specific to wound infections. Excessive swelling and redness (choice C) may be present in inflammatory responses but do not specifically point to an infection. Fever, chills, and nausea (choice D) can be systemic signs of infection but are not specific to wound infections. Tenderness, warmth, and swelling are more indicative of a localized wound infection.

Correct Answer: B

Rationale: The correct answer is B: Vitamin B12. Strict vegetarians, especially those who exclude all animal products, are at risk of Vitamin B12 deficiency as it is primarily found in animal products. Vitamin C (A) deficiency is more common in those with poor fruit and vegetable intake. Vitamin E (C) deficiency is rare and usually seen in individuals with specific medical conditions. Magnesium (D) deficiency can occur in individuals with poor dietary intake or certain medical conditions, but it is not the primary concern for strict vegetarians.

Correct Answer: A

Rationale: The correct answer is A: Administer bronchodilators. During an acute asthma attack, the priority intervention is to immediately open the airways to improve breathing. Bronchodilators, such as albuterol, work rapidly to dilate the bronchioles and relieve bronchospasms, making it the most effective initial treatment. Corticosteroids (B) are used for long-term control, not immediate relief. Applying oxygen and administering albuterol (C) is close, but bronchodilators should be given first for quicker relief. Applying a cold compress (D) is not appropriate for managing an asthma attack.

Correct Answer: D

Rationale: The correct answer is D: Administer morphine. Administering morphine is the first intervention for a client experiencing a myocardial infarction (MI) to help relieve pain and reduce anxiety. Oxygen may not be necessary if the client is not hypoxic. Administering aspirin is important but usually follows morphine. Monitoring ECG is crucial, but not the first intervention to address the immediate symptoms of MI.

Correct Answer: B

Rationale: Rationale: 1. pH within normal range (7.35-7.45) indicates homeostasis. 2. PO2 (normal 75-100 mmHg) and PCO2 (normal 35-45 mmHg) are slightly deviated but not clinically significant. 3. HCO3 within normal range (22-26 mEq/L) further supports overall balance. Summary: A: Incorrect - HCO3 level is within normal range, ruling out metabolic alkalosis. C: Incorrect - PCO2 is within normal range, ruling out respiratory acidosis. D: Incorrect - PCO2 is slightly low but not significantly, ruling out respiratory alkalosis. Overall, the ABG values indicate the body is in homeostasis.