Correct Answer: B

Rationale: Step-by-step rationale: 1. Metabolic acidosis is characterized by low pH and low plasma bicarbonate. 2. In this condition, there is an excess of acids or a loss of bicarbonate. 3. The kidneys are unable to adequately excrete acids or retain bicarbonate. 4. This leads to a decrease in bicarbonate levels and a decrease in pH. 5. Respiratory acidosis (A) is characterized by low pH and high CO2 levels. 6. Respiratory alkalosis (C) is characterized by high pH and low CO2 levels. 7. Metabolic alkalosis (D) is characterized by high pH and high bicarbonate levels. Summary: - Choice A is incorrect as it describes a condition with high CO2 levels. - Choice C is incorrect as it describes a condition with high pH. - Choice D is incorrect as it describes a condition with high bicarbonate levels. - Choice B is correct as it accurately describes the characteristics of a condition with low pH

Correct Answer: A

Rationale: The correct answer is A: Provide positive feedback when he uses the word correctly. In individuals with expressive aphasia, positive reinforcement helps improve communication skills. Praising Mr. Reyea when he uses words correctly encourages continued effort and boosts confidence. This approach motivates him to communicate more despite his challenges. Summary of other choices: B: Waiting indefinitely for Mr. Reyea to verbally state needs is not practical and may lead to frustration. C: Suggesting permanent help at home assumes the disability cannot improve, which is not necessarily true for expressive aphasia. D: Helping the family to accept Mr. Reyea's inability to communicate verbally may hinder his progress and limit his social interactions.

Correct Answer: A

Rationale: The correct answer is A: A clot can enter the circulation. When a clotted cannula is aggressively flushed, the force can dislodge the clot, allowing it to enter the circulation and potentially leading to serious complications such as embolism. Incorrect choices: B: An air embolism can enter the circulation - In the context of a clotted cannula, air embolism is less likely compared to a clot entering the circulation. C: A painful arterial spasm can occur - Arterial spasm is a potential complication but not directly related to flushing a clotted cannula. D: Fluid extravasation into surrounding tissue can occur - Flushing a clotted cannula may not specifically lead to fluid extravasation, as it is more related to needle dislodgement or improper placement.

Correct Answer: A

Rationale: The correct answer is A: Anthropometric measurements. This includes height, weight, and body mass index, which are crucial indicators of the nutritional status of a patient with Crohn's disease. It helps assess malnutrition, muscle wasting, and overall nutritional health. Dry skin (B), bleeding gums (C), and facial rubor (D) are not direct indicators of nutritional health in a patient with Crohn's disease. Dry skin may indicate dehydration, bleeding gums may suggest poor oral hygiene or gum disease, and facial rubor may be a sign of inflammation but are not specific to nutritional status.

Correct Answer: B

Rationale: Step-by-step rationale: 1. Metabolic acidosis is characterized by low pH and low plasma bicarbonate. 2. In this condition, there is an excess of acids or a loss of bicarbonate. 3. The kidneys are unable to adequately excrete acids or retain bicarbonate. 4. This leads to a decrease in bicarbonate levels and a decrease in pH. 5. Respiratory acidosis (A) is characterized by low pH and high CO2 levels. 6. Respiratory alkalosis (C) is characterized by high pH and low CO2 levels. 7. Metabolic alkalosis (D) is characterized by high pH and high bicarbonate levels. Summary: - Choice A is incorrect as it describes a condition with high CO2 levels. - Choice C is incorrect as it describes a condition with high pH. - Choice D is incorrect as it describes a condition with high bicarbonate levels. - Choice B is correct as it accurately describes the characteristics of a condition with low pH