HESI Fundamentals Test Bank

Correct Answer: A

Rationale: Heparin is typically administered in the abdomen for self-injection to avoid muscle tissue and for better absorption. The subcutaneous tissue in the abdomen provides a larger area for injection and is usually recommended for heparin administration. Administering heparin in the thigh, upper arm, or buttock may not be as effective or safe as the abdomen due to variations in absorption rates and potential risks associated with muscle injection.

Correct Answer: D

Rationale: The correct answer is D: Tuberculosis. Coughing up blood (hemoptysis) is a key symptom of tuberculosis. Tuberculosis is a respiratory infection caused by the bacterium Mycobacterium tuberculosis. The other options are incorrect because an allergic reaction typically involves symptoms like itching, hives, or swelling, not coughing up blood. Ringworm is a fungal skin infection characterized by a red, circular rash, and systemic lupus erythematosus is an autoimmune disease that primarily affects joints and skin without causing hemoptysis.

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: B

Rationale: The correct way to take buccal medications is to insert the tablet between the cheek and gums where it will dissolve slowly. Option A is incorrect because buccal medications are not meant to be dissolved in water. Option C is incorrect as sublingual medications are placed under the tongue. Option D is incorrect because chewing a buccal tablet is not the correct administration method.

Correct Answer: A

Rationale: When changing the linen on a client's bed, it is essential for the nurse to hold the linen away from their body and clothing. This practice helps prevent contamination and maintain a clean environment. Folding the linen neatly before placing it in the laundry (Choice B) is a good practice but not the immediate action required during linen changing. Wearing clean gloves while handling the linen (Choice C) is important in certain situations but may not be necessary for routine linen changing. Placing the linen directly on the floor until the new linen is in place (Choice D) is incorrect as it can lead to contamination and is not hygienic.