Nokea
A nurse is caring for a client who will perform fecal occult blood testing at home. Which of the following information should the nurse include when explaining the procedure to the client?
- A. Eating more protein is optimal prior to testing
- B. One stool specimen is sufficient for testing
- C. A red color change indicates a positive test
- D. The specimen cannot be contaminated
Correct Answer: D
Rationale: The correct answer is D because a contaminated specimen can lead to false results. The client should be instructed to avoid contaminating the specimen with urine, water, or toilet bowl cleaners. Choice A is incorrect because protein intake does not affect the test. Choice B is incorrect as multiple stool specimens are usually required. Choice C is incorrect as a blue color change indicates a positive test, not red.
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A nurse is reviewing the reported medications of a client who was recently admitted. The medications include cimetidine (Tagamet) and imipramine hydrochloride (Tofranil). Knowing that cimetidine decreases the metabolism of imipramine hydrochloride, the nurse should identify that this combination is likely to result in which of the following effects?
- A. Decreased therapeutic effects of cimetidine
- B. Increased risk of imipramine hydrochloride toxicity
- C. Decreased risk of adverse effects of cimetidine
- D. Increased therapeutic effects of imipramine hydrochloride
Correct Answer: B
Rationale: The correct answer is B: Increased risk of imipramine hydrochloride toxicity. Cimetidine inhibits the metabolism of imipramine hydrochloride, leading to increased levels of imipramine in the body. This can result in a higher concentration of imipramine, potentially causing toxicity. This interaction is known as a pharmacokinetic drug-drug interaction.
Incorrect choices:
A: Decreased therapeutic effects of cimetidine - This is incorrect because cimetidine's therapeutic effects are not directly impacted by its interaction with imipramine.
C: Decreased risk of adverse effects of cimetidine - This is incorrect as there is no evidence to suggest that the interaction with imipramine decreases the risk of adverse effects of cimetidine.
D: Increased therapeutic effects of imipramine hydrochloride - This is incorrect as the increased risk of toxicity does not equate to increased therapeutic effects.
A nurse is instructing a group of nursing students in measuring a client's respiratory rate. Which of the following guidelines should the nurse include? Select all.
- A. Place the client in semi-Fowler's position
- B. Have the client rest an arm across the abdomen
- C. Observe one full respiratory cycle before counting the rate
- D. Count the rate for one minute if it is regular
- E. Count & report any sighs the client demonstrates
Correct Answer: A, B, C
Rationale: The correct guidelines for measuring a client's respiratory rate are to place the client in semi-Fowler's position, have the client rest an arm across the abdomen, and observe one full respiratory cycle before counting the rate. Placing the client in semi-Fowler's position helps with optimal lung expansion and breathing efficiency. Having the client rest an arm across the abdomen can help the nurse visualize the rise and fall of the chest more clearly. Observing one full respiratory cycle before counting the rate ensures accuracy in counting. These guidelines are essential for obtaining an accurate respiratory rate. Choices D and E are incorrect as counting for one minute is unnecessary if the rate is regular, and counting and reporting sighs is not part of the respiratory rate measurement process.
A nurse is assessing a client who has an acute respiratory infection that puts her at risk for hypoxemia. Which of the following findings are early indications that should alert the nurse that the client is developing hypoxemia? Select all.
- A. Restlessness
- B. Tachypnea
- C. Bradycardia
- D. Confusion
- E. Pallor
Correct Answer: A,B,E
Rationale: Correct Answer: A, B, E
Rationale:
1. Restlessness: Early sign of hypoxemia due to the body's attempt to increase oxygen intake.
2. Tachypnea: Increased respiratory rate compensates for low oxygen levels in the blood.
3. Pallor: Skin paleness indicates poor oxygenation of tissues due to hypoxemia.
Incorrect Choices:
C: Bradycardia - Bradycardia is a late sign of hypoxemia, not an early indication.
D: Confusion - Confusion is a late sign of severe hypoxemia affecting the brain function.
A nurse educator is teaching a module on pharmacokinetics to a group of newly licensed nurses. Which of the following statements by a newly licensed nurse indicates an understanding of the 1st-pass effect?
- A. Some meds block normal receptor activity regulated by endogenous compounds or receptor activity caused by other meds.
- B. Some meds may have to be administered by a nonenteral route to avoid inactivation as they travel through the liver.
- C. Some meds leave the body more slowly & therefore have a greater risk of accumulation & toxicity.
- D. Some meds have a wide safety margin, so there is no need for routine serum medication level monitoring.
Correct Answer: B
Rationale: Correct Answer: B
Rationale:
1. The 1st-pass effect refers to the metabolism of a drug in the liver before it reaches systemic circulation.
2. Medications administered orally undergo first-pass metabolism in the liver, leading to potential inactivation.
3. Administering such meds through nonenteral routes (e.g., intravenous) bypasses the liver, avoiding inactivation.
4. Choice A discusses receptor activity, not related to the first-pass effect.
5. Choice C refers to drug elimination rate, not specific to the first-pass effect.
6. Choice D discusses safety margin and monitoring, not directly related to drug metabolism.
A nurse is delivering an enteral feeding to a client who has an NG tube in place for intermittent feedings. When the client asks why water is necessary after the formula drains, the nurse should respond:
- A. Water helps clear the tube so it doesn't get clogged.
- B. Flushing helps make sure the tube stays in place.
- C. This will help you get enough fluids.
- D. Adding water makes the formula less concentrated.
Correct Answer: A
Rationale: The correct answer is A: Water helps clear the tube so it doesn't get clogged. Water is necessary after enteral feeding to flush the feeding tube and prevent clogging, ensuring proper delivery of nutrition. Flushing with water also prevents residue buildup and maintains tube patency. This action helps prevent complications such as tube occlusion, which can lead to inadequate delivery of feedings or discomfort for the client. Options B, C, and D are incorrect because the primary reason for flushing the tube with water is to prevent clogging and maintain tube patency, not to secure the tube, provide fluids, or adjust formula concentration.