HESI RN
HESI Fundamentals
1. The nurse observes an unlicensed assistive personnel (UAP) taking a client's blood pressure with a cuff that is too small, but the blood pressure reading obtained is within the client's usual range. What action is most important for the nurse to implement?
- A. Tell the UAP to use a larger cuff at the next scheduled assessment.
- B. Reassess the client's blood pressure using a larger cuff.
- C. Have the unit educator review this procedure with the UAPs.
- D. Teach the UAP the correct technique for assessing blood pressure.
Correct answer: B
Rationale: The most important action is to ensure that an accurate BP reading is obtained. The nurse should reassess the blood pressure with the correct size cuff (B) to obtain an accurate reading. Postponing reassessment (A) could lead to inaccurate results. While (C and D) are important actions for education and quality improvement, they are not as critical as obtaining an accurate blood pressure reading in this situation.
2. A client with a history of myocardial infarction (MI) is admitted with chest pain. Which laboratory test should the nurse expect to be ordered to determine if the client is experiencing another MI?
- A. Troponin
- B. Myoglobin
- C. CK-MB
- D. C-reactive protein
Correct answer: A
Rationale: Troponin is the most specific and sensitive laboratory test for detecting myocardial infarction (MI). It is released when there is damage to the heart muscle, making it a valuable marker for diagnosing another MI. Myoglobin and CK-MB can also be elevated in MI, but troponin is preferred due to its higher specificity. C-reactive protein is a marker of inflammation and not specific to MI.
3. The healthcare provider selects the best site for insertion of an IV catheter in the client's right arm. Which documentation should the healthcare provider use to identify placement of the IV access?
- A. Left brachial vein
- B. Right cephalic vein
- C. Dorsal side of the right wrist
- D. Right upper extremity
Correct answer: B
Rationale: The correct answer is B: Right cephalic vein. The cephalic vein is a large, superficial vein located on the radial side of the forearm, making it the preferred site for IV access. It is often the best choice for insertion of an IV catheter due to its accessibility and low risk of complications, such as infiltration. Documenting the use of the right cephalic vein for IV access is crucial for accurate and safe patient care. Choices A, C, and D are incorrect because the left brachial vein, the dorsal side of the right wrist, and the right upper extremity are not typically preferred sites for IV catheter insertion and may not provide optimal access or outcomes.
4. The health care provider has changed a client's prescription from the PO to the IV route of administration. The nurse should anticipate which change in the pharmacokinetic properties of the medication?
- A. The client will experience increased tolerance to the drug's effects and may need a higher dose.
- B. The onset of action of the drug will occur more rapidly, resulting in a more rapid effect.
- C. The medication will be more highly protein-bound, increasing the duration of action.
- D. The therapeutic index will be increased, placing the client at greater risk for toxicity.
Correct answer: B
Rationale: When a medication is administered via the IV route, the absorptive process is bypassed, leading to a more rapid onset of action. This results in a faster effect of the drug. Choice A is incorrect because changing the route of administration does not necessarily lead to increased tolerance or the need for a higher dose. Choice C is incorrect as changing the route of administration does not directly affect the protein binding of a medication. Choice D is incorrect because increasing the therapeutic index would actually reduce the risk of toxicity, not increase it.
5. A client with a history of heart failure is admitted with a diagnosis of pulmonary edema. Which intervention should the nurse implement first?
- A. Administer oxygen via non-rebreather mask.
- B. Administer furosemide (Lasix) IV push.
- C. Insert a Foley catheter to monitor urine output.
- D. Position the client in a high Fowler's position.
Correct answer: A
Rationale: Administering oxygen via a non-rebreather mask is the priority intervention for a client with pulmonary edema to improve oxygenation and address respiratory distress. Adequate oxygenation is essential to support vital organ function. Administering furosemide intravenously, inserting a Foley catheter to monitor urine output, and positioning the client in a high Fowler's position are important interventions but are secondary to ensuring optimal oxygenation in this client with pulmonary edema.
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