Nursing Elites

1. When a client needs oxygen therapy, what is the highest flow rate that oxygen can be delivered via nasal cannula?

• A. 2 liters/minute
• B. 4 liters/minute
• C. 6 liters/minute
• D. 8 liters/minute

Correct answer: C

Rationale: The correct answer is 6 liters/minute. When a client requires oxygen therapy, the maximum flow rate that oxygen can be delivered via nasal cannula is 6 liters/minute. Nasal cannula can effectively deliver oxygen up to 6 liters/minute. Flow rates exceeding 6 liters/minute may lead to drying of the nasal passages and discomfort for the client. Higher flow rates, like 8 liters/minute, should be administered using a mask to ensure sufficient oxygenation. Options A, B, and D are incorrect as they indicate flow rates that surpass the recommended maximum for nasal cannula delivery.

2. All of the following interventions should be performed when fetal heart monitoring indicates fetal distress except:

• A. Increase maternal fluids.
• B. Administer oxygen.
• C. Decrease maternal fluids.
• D. Turn the mother.

Correct answer: C

Rationale: When fetal heart monitoring indicates fetal distress, interventions are aimed at improving oxygenation to the fetus. Increasing maternal fluids helps improve placental perfusion and oxygen delivery to the fetus. Administering oxygen also aids in increasing oxygen supply to the fetus. Turning the mother can help relieve pressure on the vena cava, optimizing blood flow to the placenta. Therefore, decreasing maternal fluids would not be performed as it can further compromise placental perfusion and fetal oxygenation, making it the exception. Decreasing maternal fluids could potentially exacerbate fetal distress by reducing oxygen delivery and nutrient supply to the fetus, which is contrary to the goal of managing fetal distress.

3. A client with an ileus is placed on intestinal tube suction. Which of the following electrolytes is lost with intestinal suction?

• A. calcium
• B. magnesium
• C. potassium
• D. sodium chloride

Correct answer: D

Rationale: When a client with an ileus is placed on intestinal tube suction, the primary electrolyte lost is sodium chloride. Duodenal intestinal fluid contains potassium (K+), sodium (Na+), and bicarbonate. Suctioning is done to remove excess fluids, leading to a decrease in the client's sodium chloride levels. Therefore, options A, B, and C are incorrect as calcium, magnesium, and potassium are not the primary electrolytes lost during intestinal suction in a client with an ileus.

4. Which of the following clients would be most appropriate for an LPN to assign to a nursing assistant?

• A. an 18-year-old client with a femur fracture who is just returning to the floor from the recovery unit
• B. an 84-year-old client 2 days post-op after knee replacement surgery who needs help ambulating
• C. a 35-year-old client who is suffering from an acute asthma attack
• D. a 20-year-old client with Cystic Fibrosis who needs an early morning sputum sample collection

Correct answer: D

Rationale: Collecting sputum samples on stable clients is within the scope of practice for an LPN. This task does not require immediate intervention or assessment by an RN or medical provider. An RN should perform the initial assessment on any client immediately post-op as it requires a higher level of assessment and monitoring. A client suffering from an acute asthma attack should be attended to by an RN or medical provider due to the potential severity and need for prompt intervention. Assigning a medically stable client who needs help ambulating to a nursing assistant is appropriate as it falls within their scope of practice and allows the LPN to focus on tasks that require their expertise.

5. Which of the following represents a normal serum potassium level?

• A. 1.5 mEq/L
• B. 3.0 mEq/L
• C. 4.0 mEq/L
• D. 6.0 mEq/L

Correct answer: C

Rationale: The correct answer is 4.0 mEq/L. Normal serum potassium levels typically range from 3.5-5.5 mEq/L. Choice A (1.5 mEq/L) is below the normal range, Choice B (3.0 mEq/L) is also below the normal range, and Choice D (6.0 mEq/L) is above the normal range. Therefore, the only option within the normal range is Choice C (4.0 mEq/L).

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