HESI RN
Pharmacology HESI Quizlet
1. Which laboratory test should the nurse monitor to determine the effectiveness of heparin therapy for a client with deep vein thrombosis?
- A. Platelet count
- B. Prothrombin time (PT)
- C. Activated partial thromboplastin time (aPTT)
- D. Hemoglobin and hematocrit
Correct answer: C
Rationale: The activated partial thromboplastin time (aPTT) is the specific laboratory test used to monitor the effectiveness of heparin therapy in patients with deep vein thrombosis. It measures the time it takes for blood to clot and is crucial in assessing the therapeutic range of heparin. Platelet count, prothrombin time (PT), and hemoglobin and hematocrit levels are important parameters in assessing coagulation and blood status but do not directly indicate the effectiveness of heparin therapy.
2. The nurse is caring for a patient who will receive 10% calcium gluconate to treat a serum potassium level of 5.9 mEq/L. The nurse performs a drug history prior to beginning the infusion. Which drug taken by the patient would cause concern?
- A. Digitalis
- B. Hydrochlorothiazide
- C. Hydrocortisone
- D. Vitamin D
Correct answer: A
Rationale: Calcium gluconate is administered to treat hyperkalemia by reducing myocardial irritability. When given to a patient taking digitalis, it can lead to digitalis toxicity. Digitalis and calcium gluconate both affect cardiac function, and their concomitant use can potentiate adverse effects. Hydrochlorothiazide, Hydrocortisone, and Vitamin D may impact potassium levels, but they do not interact with calcium gluconate in a way that would cause concern for toxicity.
3. When caring for an older incontinent client at risk for infection, which intervention is best for the nurse to implement based on the nursing diagnosis of risk for infection?
- A. Maintain standard precautions.
- B. Initiate contact isolation measures.
- C. Insert an indwelling urinary catheter.
- D. Instruct the client in the use of adult diapers.
Correct answer: A
Rationale: The correct intervention for an older incontinent client at risk for infection is to maintain standard precautions. Standard precautions, which include proper handwashing, are essential in reducing the risk of infection transmission in vulnerable clients. Initiating contact isolation measures may not be necessary for all clients, and inserting an indwelling urinary catheter should be avoided unless medically necessary to prevent additional risks of infection. Instructing the client in the use of adult diapers is not an appropriate nursing intervention to prevent infection.
4. The nurse is caring for a 5-year-old child with Reye’s syndrome. Which goal of treatment most clearly relates to caring for this child?
- A. Reduce cerebral edema and lower intracranial pressure
- B. Avert hypotension and septic shock
- C. Prevent cardiac arrhythmias and heart failure
- D. Promote kidney perfusion and normal blood pressure
Correct answer: A
Rationale: Reducing cerebral edema and lowering intracranial pressure is the primary goal of treatment for Reye’s syndrome.
5. What suggestion should the nurse provide to prevent diaper rash in a 4-month-old infant as requested by the mother?
- A. Generously powder the baby's diaper area with talcum powder at each diaper change to promote dryness.
- B. Wash the diaper area every 2 hours with soap and water to help prevent skin breakdown.
- C. Use a barrier cream, such as zinc oxide, which does not have to be completely removed with each diaper change.
- D. Place a cloth diaper inside the disposable diaper for overnight periods when increased wearing time is likely.
Correct answer: C
Rationale: Using a barrier cream like zinc oxide forms a protective layer on the skin, creating a barrier against irritants and moisture, thus helping to prevent diaper rash. Unlike other options, barrier creams do not need to be completely removed at each diaper change, allowing the skin to remain protected between changes.
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