ATI RN
ATI Fluid Electrolyte and Acid-Base Regulation
1. A nurse in the neurologic ICU has orders to infuse a hypertonic solution into a patient with increased intracranial pressure. This solution will increase the number of dissolved particles in the patients blood, creating pressure for fluids in the tissues to shift into the capillaries and increase the blood volume. This process is best described as which of the following?
- A. Hydrostatic pressure
- B. Osmosis and osmolality
- C. Diffusion
- D. Active transport
Correct answer: Osmosis and osmolality
Rationale:
2. What is an approximate method of estimating output for a child who is not toilet trained?
- A. Have parents estimate output.
- B. Weigh diapers after each void.
- C. Place a urine collection device on the child.
- D. Have the child sit on a potty chair 30 minutes after eating.
Correct answer: B
Rationale: Weighing diapers is the most accurate way to estimate urine output in a child who is not toilet trained. This method provides a measurable and reliable estimate of fluid output.
3. The nurse observes that a newborn is having problems after birth. What should indicate a tracheoesophageal fistula?
- A. Jitteriness
- B. Meconium ileus
- C. Excessive frothy saliva
- D. Increased need for sleep
Correct answer: C
Rationale: Excessive frothy saliva is a hallmark sign of tracheoesophageal fistula. The abnormal connection between the esophagus and trachea causes difficulty in swallowing, leading to an accumulation of saliva in the mouth. This symptom is crucial for early identification and management of tracheoesophageal fistula. Choices A, B, and D are incorrect as they are not specific indicators of tracheoesophageal fistula.
4. A client with asthma is prescribed a corticosteroid inhaler. Which of the following instructions should the nurse include?
- A. Use the inhaler as needed for acute symptoms.
- B. Rinse the mouth after each use.
- C. Take the medication only during asthma attacks.
- D. Administer a bronchodilator after using the corticosteroid.
Correct answer: B
Rationale: The correct instruction is to rinse the mouth after each use of a corticosteroid inhaler to prevent oral candidiasis (thrush). Choice A is incorrect because corticosteroid inhalers are usually used on a regular schedule to control asthma symptoms, not just for acute symptoms. Choice C is incorrect as corticosteroid inhalers are typically used for long-term management, not just during asthma attacks. Choice D is incorrect as administering a bronchodilator after using a corticosteroid is not a standard practice and is not necessary for the effectiveness of the corticosteroid inhaler.
5. What are stressful occurrences referred to as?
- A. Health deficit
- B. Health threats
- C. Health need
- D. Foreseeable crisis
Correct answer: D
Rationale: Stressful occurrences are known as foreseeable crises. These are situations that can be anticipated or expected to bring about stress or challenges.
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