HESI LPN
Practice HESI Fundamentals Exam
1. A client who had a myocardial infarction (MI) 2 days ago has many questions about this condition. What area is a priority for the nurse to discuss at this time?
- A. Daily needs and concerns
- B. The overview of cardiac rehabilitation
- C. Medication and diet guidelines
- D. Activity and rest guidelines
Correct answer: A
Rationale: Addressing the client's daily needs and concerns is a priority to help alleviate anxiety and ensure the client understands the immediate post-MI care. Daily needs and concerns encompass basic aspects like comfort, hygiene, emotional support, and overall well-being, which are crucial in the early recovery phase post-MI. Discussing cardiac rehabilitation, medication and diet guidelines, or activity and rest guidelines are important topics but addressing immediate personal needs and concerns takes precedence to establish a supportive and informative care environment.
2. A healthcare professional is preparing to administer an intramuscular injection to a client. Which site is most appropriate for the healthcare professional to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Dorsogluteal site
- D. Rectus femoris site
Correct answer: B
Rationale: The ventrogluteal site is the most appropriate site for administering an intramuscular injection to an adult client. This site is preferred due to its large muscle mass and distance from major nerves and blood vessels, reducing the risk of injury or complications. The deltoid muscle, while commonly used for vaccinations, may not be suitable for certain medications due to its smaller muscle mass. The dorsogluteal site is no longer recommended due to the proximity of the sciatic nerve, which can lead to complications. The rectus femoris site is not commonly used for intramuscular injections in clinical practice.
3. Which serum blood finding in diabetic ketoacidosis alerts the nurse that immediate action is required?
- A. pH below 7.3
- B. Potassium of 5.0
- C. HCT of 60
- D. PaO2 of 79%
Correct answer: C
Rationale: A hematocrit (HCT) of 60 indicates severe dehydration, a critical condition in diabetic ketoacidosis that requires immediate intervention. Severe dehydration can lead to hypovolemic shock and organ failure. While a low pH below 7.3 is indicative of acidosis, it may not require immediate action compared to severe dehydration. A potassium level of 5.0 is within the normal range and not a critical finding in this scenario. PaO2 of 79% reflects oxygenation status, which is important but not the most critical finding requiring immediate action in diabetic ketoacidosis.
4. While changing a client's postoperative dressing, the nurse observes a red and swollen wound with a moderate amount of yellow and green drainage and a foul odor. Given there is a positive MRSA, which is the most important action for the nurse to take?
- A. Force oral fluids
- B. Request a nutrition consult
- C. Initiate contact precautions
- D. Limit visitors to immediate family only
Correct answer: C
Rationale: The correct action for the nurse to take in this situation is to initiate contact precautions. MRSA (Methicillin-resistant Staphylococcus aureus) is a highly contagious bacterium that spreads through direct contact. Contact precautions involve wearing gloves and gowns to prevent the spread of infection to other patients or healthcare workers. Force-feeding oral fluids, requesting a nutrition consult, or limiting visitors to immediate family only are not the most appropriate actions in this scenario. These actions do not directly address the need to prevent the spread of MRSA, which is crucial in a healthcare setting.
5. The healthcare provider attaches a pulse oximeter to a client's fingers and obtains an oxygen saturation reading of 91%. Which assessment finding most likely contributes to this reading?
- A. BP 142/88 mmHg
- B. 2+ edema of fingers and hands
- C. Radial pulse volume is +3
- D. Capillary refill time is 2 seconds
Correct answer: B
Rationale: Edema, indicated by 2+ edema of fingers and hands, can impair blood flow and peripheral perfusion, leading to reduced oxygen saturation readings on a pulse oximeter. High blood pressure (choice A) would not directly affect oxygen saturation readings. Radial pulse volume (choice C) and capillary refill time (choice D) are more related to assessing circulation rather than contributing significantly to oxygen saturation readings.
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