Nokea
Proximal renal tubular functions include:
- A. HCO3 secretion
- B. Sodium reabsorption
- C. Ammonia production
- D. Urine concentration
Correct Answer: B
Rationale: Sodium reabsorption
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The healthcare provider prescribes an IV solution of regular insulin (Hummulin-R) 100 units in 250 ml of 0.45% saline to infuse at 12 units/hour. The nurse should program the infusion pump to deliver how many ml/hour?
- A. 30
- B. 3
- C. 40
- D. 15
Correct Answer: A
Rationale: To calculate the infusion rate in ml/hour, the nurse needs to divide the prescribed units per hour by the concentration of insulin. 12 units/hour ÷ (100 units/250 ml) = 30 ml/hour.
A child develops carditis from rheumatic fever. Which areas of the heart are affected by carditis?
- A. Coronary arteries
- B. Heart muscle and the mitral valve
- C. Aortic and pulmonic valves
- D. Contractility of the ventricles
Correct Answer: B
Rationale: The tissues that cover the heart and heart valves are affected. The heart muscle may be involved and the mitral valve is frequently involved.
What is accurate about the characteristics of high-density lipoproteins (HDLs)?
- A. They have high amounts of triglycerides.
- B. They have only small amounts of protein.
- C. They have little cholesterol.
- D. They aid in steroid production.
Correct Answer: C
Rationale: HDLs have low amounts of triglycerides, large amounts of proteins, low amounts of cholesterol, and are excreted via the liver. They have no role in the production of steroids.
The wife of a client with Parkinson's disease expresses concern because her husband has lost so much weight. Which teaching is best for the nurse to provide?
- A. Invite friends over regularly to share in meal times
- B. Encourage the client to drink clear liquids between meals
- C. Coach the client to make an intentional effort to swallow
- D. Talk to the healthcare provider about prescribing an appetite stimulant
Correct Answer: A
Rationale: Social interaction during meals can improve appetite and intake in clients with Parkinson's disease.
The nurse has provided home care instructions to the parents of a child who is being discharged after cardiac surgery. Which statement by the parents indicates a need for further instructions?
- A. “A balance of rest and exercise is important.â€
- B. “I can apply lotion or powder to the incision if it is itchy.â€
- C. “Activities in which my child could fall need to be avoided for 2-4 weeks.â€
- D. “We should avoid going to places like the mall or grocery stores for at least 2 weeks after surgery.â€
Correct Answer: B
Rationale: Applying lotion or powder to the incision can increase the risk of infection. Parents should be instructed to keep the incision clean and dry.