NCLEX-PN
NCLEX PN Exam Cram
1. Which of the following arterial blood gas values indicates a patient may be experiencing a condition of metabolic acidosis?
- A. PaO2 90 mm Hg
- B. Bicarbonate 15 mEq/L
- C. CO2 47 mm Hg
- D. pH 7.34
Correct answer: B
Rationale: The correct answer is B: Bicarbonate 15 mEq/L. In metabolic acidosis, the bicarbonate levels are lower than normal. A bicarbonate value of 15 mEq/L indicates a deficit in the buffer system, contributing to the acidosis. Choices A, C, and D are incorrect. Choice A, PaO2 90 mm Hg, reflects oxygen partial pressure and is not directly related to metabolic acidosis. Choice C, CO2 47 mm Hg, represents carbon dioxide levels and is more indicative of respiratory status. Choice D, pH 7.34, falls within the normal range (7.35-7.45) and does not confirm metabolic acidosis.
2. On morning rounds, the nurse finds a somnolent client with a Blood glucose of 89 mg/dL. A sulfonurea and a proton pump inhibitor are scheduled to be administered. What is the nurse's best action?
- A. Give the proton pump inhibitor and hold the sulfonurea until the client eats
- B. Hold medications and notify the physician
- C. Arouse the client and give some orange juice with sugar packets added
- D. Give the medications as ordered and re-check blood sugar in one hour
Correct answer: A
Rationale: The correct action is to give the proton pump inhibitor and hold the sulfonurea until the client eats. Sulfonureas should be held for blood glucose levels below 100 mg/dL until the client has food to prevent hypoglycemia. Giving the proton pump inhibitor is appropriate and does not need to be delayed. Option B is incorrect because holding both medications without taking appropriate action may lead to further complications. Option C is not the best choice as it does not address the need to hold the sulfonurea until the client eats. Option D is incorrect because administering the medications without ensuring the client eats may lead to hypoglycemia.
3. Which of the following is an inappropriate item to include in planning care for a severely neutropenic client?
- A. Transfuse neutrophils (granulocytes) to prevent infection.
- B. Exclude raw vegetables from the diet.
- C. Avoid administering rectal suppositories.
- D. Prohibit vases of fresh flowers and plants in the client's room.
Correct answer: A
Rationale: Transfusing neutrophils (granulocytes) to prevent infection is inappropriate in the care of a severely neutropenic client. Neutrophils normally comprise 70% of all white blood cells and can be beneficial in a selected population of infected, severely granulocytopenic clients (less than 500/mm3) who do not respond to antibiotic therapy and who are expected to experience prolonged suppression of granulocyte production. Therefore, transfusing neutrophils is not a standard practice in caring for neutropenic clients. The other choices are appropriate in caring for a severely neutropenic client: excluding raw vegetables from the diet to reduce the risk of infections from potential pathogens, avoiding administering rectal suppositories to prevent any injury or infection due to mucosal damage, and prohibiting vases of fresh flowers and plants in the client's room to minimize the risk of exposure to environmental pathogens.
4. Which of the following terms refers to soft tissue injury caused by blunt force?
- A. contusion
- B. strain
- C. sprain
- D. dislocation
Correct answer: A
Rationale: A contusion is a soft tissue injury caused by blunt force. It is an injury that does not break the skin, caused by a blow, and characterized by swelling, discoloration, and pain. The immediate application of cold might limit the development of a contusion. A strain is a muscle pull from overuse, overstretching, or excessive stress. A sprain is caused by a wrenching or twisting motion. A dislocation is a condition where the articular surfaces of the bones forming a joint are no longer in anatomical contact. Therefore, the correct answer is 'contusion' as it specifically relates to soft tissue injury caused by blunt force.
5. What is a chemical reaction between drugs before their administration or absorption known as?
- A. a drug incompatibility
- B. a side effect
- C. an adverse event
- D. an allergic response
Correct answer: A
Rationale: A chemical reaction between drugs before their administration or absorption is termed a drug incompatibility. This phenomenon commonly happens when drug solutions are mixed before intravenous administration, but it can also occur with orally administered drugs. Choices B, C, and D are incorrect because side effects, adverse events, and allergic responses occur after the administration and absorption of drugs, not prior to it.
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