Nokea
A client with a history of hypertension is admitted with a blood pressure of 220/120 mm Hg. What is the priority nursing action?
- A. Administer antihypertensive medication as prescribed.
- B. Place the client in a supine position.
- C. Obtain a detailed health history.
- D. Monitor urine output.
Correct Answer: A
Rationale: Administering antihypertensive medication is the priority nursing action in this situation. The extremely high blood pressure of 220/120 mm Hg puts the client at risk of severe complications such as stroke, heart attack, or kidney damage. Lowering the blood pressure promptly is crucial to prevent these complications. Placing the client in a supine position or obtaining a detailed health history are not immediate actions needed to address the hypertensive crisis. Monitoring urine output, although important, is not the priority when the client's blood pressure is critically high.
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The healthcare provider is assessing a client with a chest tube. Which finding indicates that the chest tube is functioning properly?
- A. Continuous bubbling in the water seal chamber
- B. Tidaling in the water seal chamber
- C. Absence of drainage in the collection chamber
- D. Fluid level in the suction control chamber is below the prescribed level
Correct Answer: B
Rationale: Tidaling in the water seal chamber indicates proper chest tube function. Tidaling refers to the rise and fall of fluid in the water seal with inhalation and exhalation, demonstrating the patency of the system. Continuous bubbling (Choice A) in the water seal chamber indicates an air leak. Absence of drainage in the collection chamber (Choice C) is not a desired finding as it suggests no drainage is occurring. A fluid level below the prescribed level in the suction control chamber (Choice D) may indicate inadequate suction.
Based on this strip, what is the correct interpretation of this rhythm?
- A. Atrial fibrillation.
- B. Premature atrial fibrillation.
- C. AV block.
- D. Ventricular tachycardia.
Correct Answer: A
Rationale: The correct interpretation of the rhythm strip is atrial fibrillation. This arrhythmia is characterized by an irregular heartbeat and the absence of distinct P waves. Choice B, premature atrial fibrillation, is incorrect as there is no indication of premature beats in the strip. Choice C, AV block, is also incorrect as there is no evidence of conduction delays between the atria and ventricles. Choice D, ventricular tachycardia, is not supported by the absence of wide QRS complexes typically seen in this arrhythmia.
Which type of lipoprotein is associated with decreasing the risk of atherosclerosis?
- A. High-density lipoprotein (HDL)
- B. Low-density lipoprotein (LDL)
- C. Very low-density lipoprotein (VLDL)
- D. Intermediate-density lipoprotein (IDL)
Correct Answer: A
Rationale: The correct answer is High-density lipoprotein (HDL). HDL is known as 'good' cholesterol because it helps remove cholesterol from the arteries, reducing the risk of atherosclerosis. LDL (choice B) is considered 'bad' cholesterol as it can deposit cholesterol in the arteries, increasing the risk of atherosclerosis. VLDL (choice C) and IDL (choice D) are also associated with increased risk of atherosclerosis rather than decreasing it.
An older female client has normal saline infusing at 45 ml/hour. She complains of pain at the insertion of the IV catheter. There is no redness or edema around the IV site. Which action should the nurse take?
- A. Determine what IV medications have recently been administered.
- B. Slow the infusion rate.
- C. Apply a warm compress to the IV site.
- D. Discontinue the IV line and start a new one.
Correct Answer: A
Rationale: The correct action for the nurse to take in this scenario is to determine what IV medications have recently been administered. This is important to identify if the pain at the IV site is related to a medication infusion. Slowing the infusion rate (choice B) may not address the underlying cause of the pain. Applying a warm compress (choice C) is not necessary since there is no redness or edema around the IV site. Discontinuing the IV line and starting a new one (choice D) is a drastic step and should not be the first action taken without investigating the cause of the pain.
How are type IV hypersensitivity reactions different from all other types (I, II, or III) of hypersensitivity reactions?
- A. They involve antigen-antibody complexes.
- B. They are mediated by T cells and do not involve antibodies.
- C. They result in immediate allergic reactions.
- D. They are the least severe form of hypersensitivity.
Correct Answer: B
Rationale: Type IV hypersensitivity reactions are mediated by T cells and cytokine release, leading to delayed reactions, unlike types I, II, and III, which involve antibodies. Choice A is incorrect because type IV reactions do not involve antigen-antibody complexes. Choice C is incorrect as type IV reactions do not result in immediate allergic reactions. Choice D is incorrect as type IV reactions are not the least severe form of hypersensitivity; in fact, they are known to cause significant tissue damage and inflammation.