Nursing Elites

1. Which statement best describes electrolytes in intracellular and extracellular fluid?

• A. There is a greater concentration of sodium in extracellular fluid and potassium in intracellular fluid
• B. There is an equal concentration of sodium and potassium in extracellular fluid
• C. There is a greater concentration of potassium in extracellular fluid and sodium in intracellular fluid
• D. There is an equal concentration of sodium and potassium between intracellular and extracellular fluid

Correct answer: A

Rationale: Electrolytes are distributed unequally between intracellular and extracellular fluids. Sodium concentration is higher in extracellular fluid, while potassium concentration is higher in intracellular fluid. Therefore, the correct answer is 'There is a greater concentration of sodium in extracellular fluid and potassium in intracellular fluid.' Choices B, C, and D are incorrect because they do not accurately describe the typical distribution of sodium and potassium between intracellular and extracellular fluid.

2. What is the next step for a 64-year-old male diagnosed with COPD and CHF who shows a 10 lbs increase in total body weight over the last few days?

• A. Contact the patient's physician immediately.
• B. Check the intake and output on the patient's flow sheet.
• C. Encourage the patient to ambulate to reduce lower extremity edema.
• D. Check the patient's vitals every 2 hours.

Correct answer: B

Rationale: In a patient with COPD and CHF experiencing a sudden increase in total body weight, the priority is to check the intake and output on the patient's flow sheet to evaluate fluid balance. This assessment helps determine if the weight gain is due to fluid retention, which can exacerbate CHF. Contacting the physician may be necessary based on the intake and output findings. While encouraging ambulation is beneficial for circulation, it may not address the root cause of fluid retention. Checking vitals every 2 hours is important for monitoring stability but may not pinpoint the reason behind the weight gain.

3. Which of the following is an inappropriate item to include in planning care for a severely neutropenic client?

• A. Transfuse neutrophils (granulocytes) to prevent infection.
• B. Exclude raw vegetables from the diet.
• C. Avoid administering rectal suppositories.
• D. Prohibit vases of fresh flowers and plants in the client's room.

Correct answer: A

Rationale: Transfusing neutrophils (granulocytes) to prevent infection is inappropriate in the care of a severely neutropenic client. Neutrophils normally comprise 70% of all white blood cells and can be beneficial in a selected population of infected, severely granulocytopenic clients (less than 500/mm3) who do not respond to antibiotic therapy and who are expected to experience prolonged suppression of granulocyte production. Therefore, transfusing neutrophils is not a standard practice in caring for neutropenic clients. The other choices are appropriate in caring for a severely neutropenic client: excluding raw vegetables from the diet to reduce the risk of infections from potential pathogens, avoiding administering rectal suppositories to prevent any injury or infection due to mucosal damage, and prohibiting vases of fresh flowers and plants in the client's room to minimize the risk of exposure to environmental pathogens.

4. Signs of impaired breathing in infants and children include all of the following except:

• A. nasal flaring
• B. grunting
• C. seesaw breathing
• D. quivering lips

Correct answer: D

Rationale: Signs of impaired breathing in infants and children can manifest in various ways. Nasal flaring, grunting, and seesaw breathing are all indicative of respiratory distress in pediatric patients. Nasal flaring is the widening of the nostrils with breathing effort, grunting is a sound made during exhalation to try to keep the airways open, and seesaw breathing involves the chest moving in the opposite direction of the abdomen. However, quivering lips are not typically associated with impaired breathing in this context. Lip quivering is a distracter and not a common sign of respiratory distress in infants and children. Therefore, the correct answer is 'quivering lips.'

5. A client has been taking a drug (Drug A) that is highly metabolized by the cytochrome P-450 system. He has been on this medication for 6 months. At this time, he is started on a second medication (Drug B) that is an inducer of the cytochrome P-450 system. You should monitor this client for:

• A. increased therapeutic effects of Drug A.
• B. increased adverse effects of Drug B.
• C. decreased therapeutic effects of Drug A.
• D. decreased therapeutic effects of Drug B.

Correct answer: C

Rationale: When a client is taking a drug (Drug A) metabolized by the cytochrome P-450 system and is then started on another drug (Drug B) that induces this system, the metabolism of Drug A is increased. This results in decreased therapeutic effects of Drug A as it is broken down more rapidly. Monitoring is required to address potential reduced efficacy. The therapeutic effect of Drug A is diminished, not enhanced. Inducing the cytochrome P-450 system does not directly increase the adverse effects of Drug B. Although Drug B is an inducer, its therapeutic effects are not decreased as it is not metabolized faster.

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