HESI LPN
HESI Fundamentals Exam
1. A healthcare professional is caring for a client who has pharyngeal diphtheria. Which of the following types of transmission precautions should the healthcare professional initiate?
- A. Contact
- B. Droplet
- C. Airborne
- D. Protective
Correct answer: B
Rationale: The correct answer is B: Droplet. Droplet precautions are required for infections that spread via droplets larger than 5 microns in diameter, such as pharyngeal diphtheria. Contact precautions are used for diseases that spread by direct or indirect contact. Airborne precautions are for diseases that spread through small particles in the air. Protective precautions are not a standard precautionary measure for specific infections like pharyngeal diphtheria.
2. A client with a history of atrial fibrillation is taking digoxin (Lanoxin). Which finding should the healthcare provider be notified of immediately?
- A. Heart rate of 52 beats per minute
- B. Blood pressure of 110/70 mmHg
- C. Blood glucose level of 180 mg/dL
- D. Potassium level of 4.0 mEq/L
Correct answer: A
Rationale: A heart rate of 52 beats per minute is a critical finding in a client taking digoxin, as it may indicate digoxin toxicity. Digoxin can cause bradycardia as a side effect, and a heart rate of 52 bpm warrants immediate attention to prevent adverse outcomes. Monitoring and reporting changes in heart rate are crucial in clients on digoxin therapy to prevent serious complications. The other vital signs and laboratory values provided are within normal ranges or not directly associated with digoxin toxicity in this scenario, making them lower priority for immediate reporting.
3. A nurse on a medical-surgical unit is caring for a group of clients. For which of the following clients should the nurse expect a prescription for fluid restriction?
- A. A client who has a new diagnosis of adrenal insufficiency
- B. A client who has heart failure
- C. A client who is receiving treatment for diabetic ketoacidosis
- D. A client who has abdominal ascites
Correct answer: B
Rationale: The correct answer is B. Fluid restriction is commonly prescribed for clients with heart failure to prevent fluid overload and exacerbation of heart failure symptoms. Heart failure often leads to fluid retention, and restricting fluid intake can help manage this condition. Adrenal insufficiency, diabetic ketoacidosis, and abdominal ascites do not typically require fluid restriction as a primary intervention. Adrenal insufficiency may require hormone replacement therapy, diabetic ketoacidosis requires fluid and electrolyte replacement, and abdominal ascites may require diuretics or paracentesis to remove excess fluid.
4. Which anatomical location is associated with the deep tendon reflex known as the patellar reflex?
- A. Knee picture
- B. Ankle picture
- C. Elbow picture
- D. Wrist picture
Correct answer: A
Rationale: The patellar reflex, also called the knee-jerk reflex, is elicited by tapping the patellar tendon just below the patella. This reflex involves the quadriceps muscle and the femoral nerve. The correct answer is 'A: Knee picture' because the patellar reflex is associated with the knee joint. Choices B, C, and D are incorrect as they do not correspond to the anatomical location involved in the patellar reflex.
5. A healthcare provider is preparing to insert an IV catheter into a client's arm before starting IV fluid therapy. Which of the following interventions should the provider implement to prevent infection?
- A. Thread the IV catheter so that the hub rests at the insertion site
- B. Shave excess hair from around the insertion site
- C. Cleanse the site with hydrogen peroxide before IV catheter insertion
- D. Palpate the site carefully just before inserting the IV catheter
Correct answer: A
Rationale: Inserting the IV catheter so that the hub rests at the insertion site reduces the risk of contamination along the length of the catheter. This technique helps prevent introducing microbes into the bloodstream during the catheter insertion process. Shaving excess hair is unnecessary and can increase the risk of skin irritation and infection. Cleansing the site with hydrogen peroxide is outdated as it can cause tissue damage and delay wound healing. Palpating the site just before insertion can introduce bacteria from the skin surface into the insertion site, increasing the risk of infection.
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