Correct Answer: D

Rationale: A serum potassium level of 6 mEq/L indicates hyperkalemia, which can be life-threatening and requires immediate intervention. Hyperkalemia can lead to dangerous cardiac arrhythmias and must be addressed promptly. The other options are not as urgent. A blood urea nitrogen level of 50 mg/dl may indicate kidney dysfunction but does not require immediate intervention. Hemoglobin of 10.3 g/dl may suggest anemia, which needs management but is not an immediate threat. A venous blood pH of 7.30 may indicate acidosis, which is concerning but not as acutely dangerous as hyperkalemia.

Correct Answer: D

Rationale: The correct answer is D: 'Consume organs and bananas.' When a client is taking a potassium-wasting diuretic, they are at risk of potassium loss. Consuming foods high in potassium, such as organs and bananas, can help counteract this loss. Choice A is incorrect because tuna and salmon are not particularly high in potassium. Choice B is incorrect because dried fruits are good sources of potassium. Choice C is incorrect as cow's milk is also a good source of potassium, which could be beneficial for a client taking a potassium-wasting diuretic.

Correct Answer: A

Rationale: The correct answer is A because peanut butter and egg whites are not recommended for infants under 12 months due to the risk of choking and allergies. Choices B, C, and D are appropriate food choices for an 8-month-old infant. Rice cereal, crackers, pureed liver, strained pears, applesauce, and green peas are all suitable options for introducing solid foods to infants.

Correct Answer: B

Rationale: Assessing for signs of infection at the insertion site is the priority when caring for a client with a chest tube. Infection at the insertion site can lead to serious complications such as empyema or sepsis. Monitoring respiratory status is essential but assessing for infection takes precedence to prevent immediate harm. Assessing for subcutaneous emphysema is important but not the priority unless it compromises respiratory function. Checking the chest tube for kinks or occlusions is crucial for proper drainage but is not the priority when infection is a concern.

Correct Answer: B

Rationale: In cases of preeclampsia with increasing blood pressure, the priority action for the nurse is to have the client turn to the left side. This position helps improve blood flow to the placenta and fetus, reducing the risk of complications. Checking the protein level in urine (Choice A) is important for assessing preeclampsia but not the immediate priority when blood pressure is increasing. Taking the temperature (Choice C) is not directly related to addressing increased blood pressure in preeclampsia. Monitoring urine output (Choice D) is essential but not the first action to take when blood pressure is rising.