Nokea
Immunity to a disease after recovery is possible because the first exposure to the pathogen has stimulated the formation of which of the following?
- A. Antigens
- B. Complement
- C. Memory cells
- D. Natural killer cells
Correct Answer: C
Rationale: The correct answer is C: Memory cells. After recovery from a disease, memory cells are formed as part of the adaptive immune response. These memory cells "remember" the pathogen and can mount a quicker and stronger immune response upon re-exposure. This results in immunity to the disease. Antigens (choice A) are substances that trigger the immune response but do not provide immunity on their own. Complement (choice B) is a group of proteins that enhance the immune response but do not directly lead to immunity. Natural killer cells (choice D) are part of the innate immune system and are not responsible for the specific memory response needed for immunity.
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The physician orders propranolol (Inderal) for a client's angina. The effect of this drug is to:
- A. Act as a vasoconstrictor
- B. Block beta stimulation in the heart
- C. Act as a vasodilator
- D. Increase the heart rate
Correct Answer: B
Rationale: The correct answer is B: Block beta stimulation in the heart. Propranolol is a beta-blocker that works by blocking beta-1 and beta-2 receptors in the heart. By doing so, it reduces the heart rate, decreases the force of contraction, and lowers blood pressure, which helps in managing angina. Option A is incorrect because propranolol does not act as a vasoconstrictor. Option C is incorrect because propranolol does not act as a vasodilator. Option D is incorrect because propranolol decreases the heart rate rather than increasing it.
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 correct answer is D, the elderly patient receiving a diuretic for fluid overload. This patient would benefit most from a capped IV catheter used intermittently because diuretics can lead to fluctuations in fluid balance that require careful monitoring and adjustment of IV fluids. By using the catheter intermittently, healthcare providers can better control the amount of fluid administered to prevent electrolyte imbalances.
Option A is incorrect because a patient with pneumonia requiring fluids and antibiotics would likely benefit from a continuous IV to maintain stable levels of medications and hydration. Option B is incorrect as a patient with major blood loss would require continuous IV fluids to restore blood volume. Option C is incorrect as a dehydrated young child would also benefit from continuous IV fluids to rehydrate effectively.
A client metastatic ovarian cancer is prescribed cisplatin (Platinol). Before administering the first dose, the nurse reviews the client’s medication history for drugs that may interact with cisplatin. Which drug may cause significant interactions when given concomitantly with cisplatin?
- A. Erythromycin
- B. A cephalosporin
- C. A tetracycline
- D. An amino glycoside Situation: A client with ovarian cancer is prescribed hydroxyurea (Hydrea), an antimetabolite drug.
Correct Answer: D
Rationale: The correct answer is D: An aminoglycoside. Aminoglycosides, such as gentamicin or amikacin, can interact with cisplatin by increasing the risk of nephrotoxicity and ototoxicity. Both cisplatin and aminoglycosides have the potential to cause kidney damage, and when used together, the risk of kidney toxicity is significantly increased. This interaction is due to the additive effects on the kidneys. Therefore, it is crucial to monitor renal function closely and adjust the dosages of these drugs accordingly to prevent severe adverse effects.
Summary:
A: Erythromycin - Erythromycin is not known to have significant interactions with cisplatin.
B: A cephalosporin - Cephalosporins do not typically interact with cisplatin in a clinically significant manner.
C: A tetracycline - Tetracyclines are not known to cause significant interactions with
A post-TURP patient experiences dribbling following removal of his catheter. Which action should the nurse take?
- A. Have him restrict fluid intake to 1000 mL/day
- B. Teach him to perform Kegel’s exercises 10 to 20 times per hour
- C. Reinsert the Foley catheter until he regains urinary control
- D. Reassure him that incontinence never lasts more than a few days
Correct Answer: B
Rationale: The correct answer is B: Teach him to perform Kegel's exercises 10 to 20 times per hour. This is the appropriate action because Kegel's exercises help strengthen the pelvic floor muscles, which can improve urinary control and reduce dribbling post-TURP. Restricting fluid intake (A) is not necessary and may lead to dehydration. Reinserting the Foley catheter (C) is not recommended as it can increase the risk of infection. Reassuring the patient (D) without providing any intervention is not addressing the issue. Teaching Kegel's exercises is the most effective and non-invasive approach to manage post-TURP dribbling.
A patient exhibits the following symptoms: tachycardia, increased thirst, headache, decreased urine output, and increased body temperature. The nurse analyzes the data. Which nursing diagnosis will the nurse assign to the patient?
- A. Adult failure to thrive
- B. Hypothermia NursingStoreRN
- C. Deficient fluid volume
- D. Nausea
Correct Answer: C
Rationale: The correct nursing diagnosis is C: Deficient fluid volume. The patient's symptoms indicate dehydration, as evidenced by tachycardia, increased thirst, decreased urine output, and increased body temperature. This points to a lack of fluid in the body. Option A, adult failure to thrive, does not address the immediate issue of fluid volume. Option B, hypothermia, is incorrect as the patient has an increased body temperature. Option D, nausea, is not a primary issue compared to the symptoms indicating dehydration. Therefore, the correct nursing diagnosis is C: Deficient fluid volume.