HESI Fundamentals Test Bank

Correct Answer: A

Rationale: An elevated white blood cell count (WBC 15,000/mm�) is a common indicator of infection as the body increases WBC production to fight off pathogens. In conditions like infections, inflammation, or stress, the WBC count can rise. The other options, hemoglobin, platelet count, and sodium levels, are not typically specific indicators of infection. Hemoglobin measures the oxygen-carrying capacity of red blood cells, platelet count assesses clotting ability, and sodium levels indicate electrolyte balance.

Correct Answer: C

Rationale: The correct answer is 'C: Sore throat.' Oxygen toxicity can manifest with symptoms like a sore throat, cough, chest pain, difficulty breathing, and fatigue. However, a sore throat can be an early indicator of oxygen toxicity and should prompt immediate attention. Nasal congestion, cough, and fatigue are not specific indicators of oxygen toxicity but could be related to other factors in a client with COPD receiving oxygen therapy.

Correct Answer: C

Rationale: To administer 7.5 mg of metolazone (Zaroxolyn), the LPN/LVN should plan to give 1 1/2 tablets since each tablet contains 5 mg. Choice A (1/2 tablet) would not provide the full prescribed dose. Choice B (1 tablet) would only deliver 5 mg, which is less than the prescribed dose. Choice D (2 tablets) would exceed the prescribed dose, resulting in 10 mg instead of the required 7.5 mg. Therefore, the correct answer is to administer 1 1/2 tablets to achieve the prescribed 7.5 mg.

Correct Answer: C

Rationale: The correct answer is C. Taking water pills (diuretics) only when feeling short of breath is incorrect. Diuretics should be taken regularly as prescribed to help manage fluid retention in chronic heart failure. This statement indicates a need for further teaching as the client needs to understand the importance of consistent medication adherence. Choices A, B, and D demonstrate good understanding of self-care management in heart failure, including daily weight monitoring, prompt reporting of worsening symptoms to the healthcare provider, and dietary sodium restriction, respectively.

Correct Answer: C

Rationale: The nurse should inform the patient that using oval corn pads can increase pressure on the toes and impede circulation, which may exacerbate foot problems in patients with diabetes. It is important to avoid practices that restrict blood flow to the feet, as poor circulation can lead to serious complications. Soaking the feet and using a pumice stone can be beneficial for corns, but in this case, the current self-treatment with corn pads is not recommended. Tighter shoes would further increase pressure on the corns and should be avoided. Therefore, the nurse should emphasize the importance of proper foot care and recommend alternative treatments to promote foot health and prevent complications.