Nokea
The major pharmacologic action of albuterol sulfate (Proventil HFA) is:
- A. decreasing airway reactivity.
- B. decreasing inflammation and airway obstruction.
- C. improving the action of cilia to sweep trapped mucous upward.
- D. relaxing constricted bronchial smooth muscle.
Correct Answer: D
Rationale: Albuterol acts as a beta-2 agonist, relaxing bronchial smooth muscle to relieve airway constriction.
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When teaching a client about insulin administration, the nurse should include which instruction?
- A. "Administer insulin after the first meal of the day."
- B. "Inject insulin at a 45-degree angle into the deltoid muscle."
- C. "Shake the insulin vial vigorously before withdrawing the medication."
- D. "Draw up clear insulin first when mixing two types of insulin in one syringe."
Correct Answer: D
Rationale: When mixing two types of insulin in one syringe, it is essential to draw up the clear insulin first before drawing up the cloudy insulin. This sequence prevents the clear insulin from becoming contaminated with the cloudy insulin and ensures accurate dosing. Drawing up the clear insulin first helps to minimize the risk of inaccurate dosing and maintains the effectiveness of the insulin being administered.
Hepatitis C virus infection is a risk factor for which of the following malignancy?
- A. hepatoblastoma
- B. splenic lymphoma
- C. Hodgkin lymphoma
- D. nasopharyngeal carcinoma
Correct Answer: B
Rationale: Hepatitis C is a known risk factor for splenic lymphoma and other B-cell lymphoproliferative disorders.
Which patient would benefit most from a capped IV catheter that is used intermittently rather than continuously?
- A. The patient with pneumonia who needs fluids and antibiotics.
- B. The patient who has had major blood loss after a motor vehicle accident.
- C. The young child who is dehydrated.
- D. The elderly patient who is receiving a diuretic for fluid overload.
Correct Answer: D
Rationale: The elderly patient who is receiving a diuretic for fluid overload would benefit most from a capped IV catheter used intermittently rather than continuously. Diuretics cause the body to expel excess fluid, so the patient may require intermittent IV fluid replacement to maintain hydration while avoiding overloading the system with excessive fluids. By using the IV catheter intermittently, healthcare providers can closely monitor the patient's fluid status and adjust fluid administration as needed to prevent dehydration or fluid overload. This approach allows for more precise management of the patient's fluid balance compared to continuous IV infusion.
Following a unilateral adrenalectomy, the nurse would assess for hyperkalemia shown by which of the following?
- A. Muscle weakness
- B. Diaphoresis
- C. Tremors
- D. Constipation
Correct Answer: A
Rationale: Following a unilateral adrenalectomy, there is a risk of developing hyperkalemia due to the altered balance of electrolytes. Hyperkalemia is characterized by high levels of potassium in the blood, which can lead to various symptoms. One of the key manifestations of hyperkalemia is muscle weakness. This occurs because high potassium levels can disrupt the normal function of skeletal muscles, leading to weakness and potentially affecting motor function. Therefore, the nurse would assess for muscle weakness as a sign of hyperkalemia in a patient following a unilateral adrenalectomy. Options B, C, and D are not typically associated with hyperkalemia.
The major pharmacologic action of albuterol sulfate (Proventil HFA) is:
- A. decreasing airway reactivity.
- B. decreasing inflammation and airway obstruction.
- C. improving the action of cilia to sweep trapped mucous upward.
- D. relaxing constricted bronchial smooth muscle.
Correct Answer: D
Rationale: Albuterol acts as a beta-2 agonist, relaxing bronchial smooth muscle to relieve airway constriction.