The nurse is reviewing laboratory results on a client with acute renal failure. Which one of the following should be reported immediately?

A. Blood urea nitrogen 50 mg/dl

B. Hemoglobin of 10.3 g/dl

C. Venous blood pH 7.30

D. Serum potassium 6 mEq/L

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.

A nurse is reinforcing dietary teaching with a client who has iron deficiency anemia. The nurse should explain that which of the following food sources contains iron that is most easily absorbed by the body?

• A. Spinach
• B. Dried apricots
• C. Chicken
• D. Lentils

Correct Answer: C
Rationale: The correct answer is C, 'Chicken.' Heme iron from animal sources, such as chicken, is more easily absorbed by the body compared to non-heme iron from plant sources like spinach, dried apricots, and lentils. While plant-based iron sources are beneficial, they are not as readily absorbed by the body as heme iron from animal products.

What is the most effective nursing intervention to prevent atelectasis from developing in a postoperative client?

• A. Maintain adequate hydration
• B. Assist the client to turn, deep breathe, and cough
• C. Ambulate the client within 12 hours
• D. Splint the incision

Correct Answer: B
Rationale: The correct answer is to assist the client to turn, deep breathe, and cough. This intervention helps to expand the lungs and prevent atelectasis in postoperative clients. Maintaining adequate hydration is important for overall health but is not the most effective intervention for preventing atelectasis. Ambulating the client within 12 hours is beneficial for preventing complications after surgery, but it may not be as directly effective in preventing atelectasis as turning, deep breathing, and coughing. Splinting the incision is important for postoperative care, but it does not specifically address the prevention of atelectasis.

A child is admitted to the pediatric unit with a diagnosis of suspected meningococcal meningitis. Which admission orders should the nurse do first?

• A. Institute seizure precautions
• B. Monitor neurologic status every hour
• C. Place in respiratory/secretion precautions
• D. Cefotaxime IV 50 mg/kg/day divided q6h

Correct Answer: C
Rationale: The correct answer is to place the child in respiratory/secretion precautions first. Meningococcal meningitis is highly contagious, and respiratory precautions are essential to prevent the spread of the infection. Seizure precautions may be necessary but are not the priority upon admission. Monitoring neurologic status is important but not the initial action needed. While antibiotic therapy like Cefotaxime is crucial, implementing isolation precautions to prevent transmission takes precedence in this situation.

When reassigned to the emergency department, a nurse should understand that gastric lavage is a priority in which situation?

• A. An infant who has been identified to have botulism
• B. A toddler who ate a number of ibuprofen tablets
• C. A preschooler who swallowed powdered plant food
• D. A school-aged child who took a handful of vitamins

Correct Answer: A
Rationale: The correct answer is A because gastric lavage is a priority for infants with botulism to remove toxins from the stomach. Botulism is a serious condition caused by a toxin produced by Clostridium botulinum bacteria. Gastric lavage helps in removing the toxin from the stomach. Choice B is incorrect because gastric lavage is not typically indicated for ibuprofen ingestion. Choice C is incorrect because gastric lavage is not the first-line treatment for ingesting powdered plant food. Choice D is incorrect because gastric lavage is not routinely performed for vitamin ingestion.