Correct Answer: C

Rationale: The correct answer is C: Amount and color of sinus drainage. Assessing the amount and color of sinus drainage is crucial in evaluating the effectiveness of nursing interventions for sinusitis discomfort as it indicates the presence of infection or inflammation. Changes in color or amount can signify improvement or worsening of the condition. WBC count (A) may indicate infection but doesn't directly reflect sinusitis discomfort. Capillary refill (B) assesses circulation, not sinusitis. Comfort level (D) is subjective and can vary among individuals, making it less reliable for assessing the effectiveness of interventions.

Correct Answer: B

Rationale: The correct answer is B: Quadriceps setting. After surgery, quadriceps setting exercises are crucial for preventing muscle atrophy and maintaining joint mobility. Bladder control (A) is important but typically not the major early problem. Client education (C) and use of aids for ambulation (D) are important aspects of care but not the primary concern immediately post-surgery. Quadriceps setting helps prevent complications and promote early mobility.

Correct Answer: D

Rationale: The correct answer is D: Patency of airway and adequacy of respiration. During the acute stage of an unconscious patient like Mr. Franco, ensuring the airway is open and that breathing is adequate is the top priority to maintain oxygenation and prevent complications like hypoxia. This assessment is crucial for immediate intervention and can be life-saving. A: Level of awareness and response to pain may provide important information but is secondary to ensuring a patent airway and adequate breathing in an unconscious patient. B: Pupillary reflexes and response to sensory stimuli are important neurological assessments, but airway and breathing take precedence in the acute stage to maintain vital functions. C: Coherence and sense of hearing are not as critical as assessing and maintaining the airway and breathing in an unconscious patient.

Correct Answer: C

Rationale: The correct answer is C (30 seconds) because the maximum recommended time for suctioning a patient is typically around 10-15 seconds for each pass. Prolonged suctioning can lead to tissue damage, hypoxia, and increased risk of infection. In this case, given the patient's symptoms and medical history (vomiting, weight loss, dehydration, hypotension), it is crucial to limit suction time to prevent further complications. Choices A, B, and D are incorrect as they exceed the safe duration for suctioning and increase the risk of harm to the patient. Choice D, in particular, is significantly longer than the recommended time and could pose serious risks to the patient's health in this situation.

Correct Answer: C

Rationale: The correct answer is C because antihistamines can suppress the immune response that the skin test is designed to detect, leading to false negative results. By inhibiting the body's allergic response, antihistamines can mask the presence of an allergy, giving the false impression that the individual is not allergic to a particular substance. This can lead to misdiagnosis and improper treatment. Choices A, B, and D are incorrect because antihistamines do not affect bleeding, aggravate allergic reactions, or cause wheezing in the context of a skin test.