HESI LPN
HESI Fundamentals Study Guide
1. A client is being discharged home with oxygen therapy via a nasal cannula. Which of the following instructions should the nurse provide to the client and family?
- A. Wear cotton clothing to avoid static electricity.
- B. Avoid using any electrical appliances.
- C. Keep the oxygen tank away from heat sources.
- D. Use only a specific type of nasal cannula.
Correct answer: A
Rationale: The correct answer is A: Wear cotton clothing to avoid static electricity. When using oxygen therapy, static electricity can pose a hazard as it increases the risk of fire. Cotton clothing helps reduce static electricity buildup. Choice B, avoiding electrical appliances, is overly restrictive and not entirely necessary. Choice C, keeping the oxygen tank away from heat sources, is important to prevent fire hazards but is not directly related to the nasal cannula. Choice D, using only a specific type of nasal cannula, is not a universal guideline and limits flexibility in care.
2. The healthcare provider is preparing to administer a subcutaneous injection of heparin. Which site is most appropriate for the healthcare provider to use?
- A. Deltoid muscle
- B. Ventrogluteal site
- C. Abdomen
- D. Dorsogluteal site
Correct answer: C
Rationale: The abdomen is the most appropriate site for administering subcutaneous heparin injections. The abdomen has a layer of subcutaneous fat and a good blood supply, making it an ideal site for subcutaneous injections. Using the deltoid muscle for heparin injections is not appropriate as it is typically used for intramuscular injections. The ventrogluteal site is more suitable for intramuscular injections rather than subcutaneous injections. The dorsogluteal site is no longer recommended for injections due to the risk of injury to the sciatic nerve.
3. A client with a history of diabetes mellitus is experiencing polyuria, polydipsia, and polyphagia. What is the most important action for the nurse to take?
- A. Monitor the client's blood glucose level.
- B. Encourage the client to increase fluid intake.
- C. Administer insulin as prescribed.
- D. Assess the client's urine output.
Correct answer: A
Rationale: The most critical action for the nurse to take when a client with diabetes mellitus presents with symptoms of hyperglycemia such as polyuria, polydipsia, and polyphagia is to monitor the client's blood glucose level. This action helps in assessing the client's current glycemic status and guides further interventions. Encouraging increased fluid intake (Choice B) may be beneficial in managing dehydration caused by polyuria, but it does not address the underlying cause of hyperglycemia. Administering insulin as prescribed (Choice C) may be necessary based on the blood glucose monitoring results, but monitoring should precede any medication administration. Assessing the client's urine output (Choice D) is important but does not directly address the primary concern of evaluating and managing hyperglycemia in a client with diabetes.
4. The healthcare provider is caring for a client with a history of deep vein thrombosis (DVT). Which symptom would be most concerning?
- A. Pain in the affected leg
- B. Redness and warmth in the affected leg
- C. Shortness of breath
- D. Swelling in the affected leg
Correct answer: C
Rationale: Shortness of breath is the most concerning symptom in a client with a history of deep vein thrombosis (DVT) because it could indicate a pulmonary embolism. A pulmonary embolism is a serious complication of DVT where a blood clot travels to the lungs and can be life-threatening. Immediate medical attention is required to prevent further complications. Pain, redness, warmth, and swelling in the affected leg are common symptoms of DVT itself but do not pose the same level of immediate danger as the potential for a pulmonary embolism.
5. A client with diabetes mellitus is being taught by a nurse about mixing regular and NPH insulin. Which of the following statements by the client indicates an understanding of the teaching?
- A. I should roll the NPH vial between my hands before drawing it up.
- B. I should draw up the NPH insulin before the regular insulin.
- C. I should inject air into the vial of regular insulin first.
- D. I should wait 10 minutes after mixing the insulin to inject it.
Correct answer: A
Rationale: The correct answer is A. Rolling the NPH vial between the hands before drawing it up ensures proper mixing of the insulin. Choice B is incorrect because regular insulin should be drawn up first to avoid contamination. Choice C is incorrect as injecting air into the vial of regular insulin is not necessary. Choice D is incorrect as there is no need to wait 10 minutes after mixing the insulin before injecting it.
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