Correct Answer: A

Rationale: The correct answer is A: Pulmonary embolism and stroke. Untreated DVT can result in these serious complications, emphasizing the importance of timely intervention. Choices B, C, and D are incorrect because they do not represent common complications associated with untreated deep vein thrombosis. Infection and kidney failure, hypertension and vision loss, as well as dehydration and electrolyte imbalance are not typically direct consequences of untreated DVT.

Correct Answer: A

Rationale: The correct answer is A: Monitor electrolyte levels and administer potassium as needed. Patients on diuretic therapy are at risk of electrolyte imbalances, particularly low potassium levels. Monitoring electrolytes and administering potassium as needed are crucial nursing interventions to prevent imbalances. Choice B is incorrect because restricting fluid intake and providing a low-sodium diet are not typically indicated for patients on diuretic therapy. Choice C is incorrect as encouraging oral fluids and increasing dietary potassium can exacerbate electrolyte imbalances in patients on diuretics. Choice D is incorrect as providing high-sodium foods would worsen electrolyte balance issues in patients on diuretic therapy.

Correct Answer: B

Rationale: The correct first step before administering a blood transfusion is to verify that the client's blood type matches the blood product. This step is crucial to prevent transfusion reactions due to incompatibility. Choice A is incorrect because blood should not be administered through an IV push for a blood transfusion. Choice C is incorrect because it is not necessary for the client to eat before a blood transfusion. Choice D is incorrect because administering a diuretic is not a standard practice before starting a blood transfusion.

Correct Answer: B

Rationale: The correct next step when a client develops phlebitis while receiving IV fluids is to remove the catheter and place it in another site. Phlebitis is inflammation of a vein, and leaving the catheter in the same site can lead to further complications. Monitoring the site for further swelling, as in choice A, is not enough as the source of inflammation needs to be removed. Choice C, reducing the flow rate, may not address the underlying issue causing phlebitis. Switching to oral hydration, as in choice D, is not necessary for addressing phlebitis related to IV fluid administration.

Correct Answer: A

Rationale: The correct intervention for a patient experiencing hypovolemic shock is to administer IV fluids. In hypovolemic shock, there is a significant loss of circulating blood volume leading to inadequate perfusion to tissues. Administering IV fluids is crucial to restore blood volume and improve tissue perfusion. Monitoring blood pressure (choice B) is important but not the primary intervention in hypovolemic shock. Placing the patient in Trendelenburg position (choice C) can worsen outcomes by increasing intracranial pressure and is no longer recommended. Administering oxygen (choice D) is beneficial for many conditions but does not address the underlying issue of inadequate circulating blood volume in hypovolemic shock.