the nurse in the medical icu is caring for a patient who is in respiratory acidosis due to inadequate ventilation what diagnosis could the patient ha

ATI RN

ATI Fluid Electrolyte and Acid-Base Regulation

1. The nurse in the medical ICU is caring for a patient who is in respiratory acidosis due to inadequate ventilation. What diagnosis could the patient have that could cause inadequate ventilation?

A. Endocarditis
B. Multiple myeloma
C. Guillain-Barr syndrome
D. Overdose of amphetamines

Correct answer: C

Rationale:

2. 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: B

Rationale:

3. What is the most important regulator of the amount of sodium in the body?

A. Kidneys
B. Small intestine
C. Large intestine
D. Skin

Correct answer: A

Rationale: The correct answer is A: Kidneys. The kidneys play a crucial role in regulating the amount of sodium in the body. They achieve this by filtering blood and controlling the excretion or reabsorption of sodium. The small intestine is primarily responsible for nutrient absorption, not sodium regulation. The large intestine is mainly involved in water absorption and waste elimination, not sodium balance. The skin helps regulate body temperature through sweating and does not directly regulate sodium levels.

4. The healthcare provider is evaluating a patient's laboratory results. Based on the laboratory findings, what results will cause the release of an antidiuretic hormone (ADH)?

A. Increased serum sodium
B. Decreased serum sodium
C. Decrease in serum osmolality
D. Decrease in thirst

Correct answer: A

Rationale: The correct answer is A: Increased serum sodium. When serum sodium levels increase, it triggers the release of ADH by the posterior pituitary gland. ADH helps in retaining water, reducing urine output, and maintaining fluid balance. Choices B, C, and D are incorrect because decreased serum sodium, decrease in serum osmolality, and decrease in thirst do not stimulate the release of ADH.