NCLEX-PN
NCLEX PN Exam Cram
1. The PN is caring for a client with diabetes insipidus. The nurse can expect the lab work to show:
- A. elevated urine osmolarity and elevated serum osmolarity.
- B. decreased urine osmolarity and decreased serum osmolarity.
- C. elevated urine osmolarity and decreased serum osmolarity.
- D. decreased urine osmolarity and elevated serum osmolarity.
Correct answer: D
Rationale: In diabetes insipidus, the pituitary releases too much antidiuretic hormone (ADH), causing the client to produce a large amount of dilute urine (decreased osmolarity) and leading to dehydration (elevated serum osmolarity). Therefore, the correct answer is decreased urine osmolarity and elevated serum osmolarity. Choice C, elevated urine osmolarity and decreased serum osmolarity, is incorrect for diabetes insipidus, as it is more characteristic of syndrome of inappropriate ADH (SIADH). Choices A and B, elevated urine osmolarity and elevated serum osmolarity, and decreased urine osmolarity and decreased serum osmolarity, respectively, are generally not seen in diabetes insipidus, as urine and serum osmolarity typically move in opposite directions in this condition.
2. High uric acid levels can develop in clients who are receiving chemotherapy. This can be caused by:
- A. the inability of the kidneys to excrete the drug metabolites.
- B. rapid cell catabolism.
- C. toxic effects of the prophylactic antibiotics that are given concurrently.
- D. the altered blood pH from the acidic nature of the drugs.
Correct answer: B
Rationale: The correct answer is 'rapid cell catabolism.' During chemotherapy, rapid cell destruction occurs, leading to an increase in uric acid levels as a byproduct of cell breakdown. High uric acid levels are primarily a result of the rapid breakdown of cells during chemotherapy, not due to the kidneys' inability to excrete drug metabolites (Choice A). The prophylactic antibiotics given concurrently do not directly cause high uric acid levels (Choice C). The altered blood pH from the acidic nature of the drugs (Choice D) is not a direct cause of elevated uric acid levels; the main mechanism is the rapid cell catabolism that occurs during chemotherapy.
3. A nurse is covering a pediatric unit and is responsible for a 15-year-old male patient on the floor. The mother of the child states, "I think my son is sexually interested in girls."? The most appropriate course of action for the nurse is to respond by stating:
- A. "I will talk to the doctor about it."?
- B. "Has this been going on for a while?"?
- C. "How do you know this?"?
- D. "Teenagers often exhibit signs of sexual interest in females."?
Correct answer: D
Rationale: The most appropriate response for the nurse in this situation is to acknowledge that teenagers often exhibit signs of sexual interest in females. This response normalizes the mother's concern and provides reassurance that such behavior is typical during adolescence. Option A deflects the conversation to the doctor without addressing the mother's concern directly. Option B focuses on the duration rather than addressing the mother's statement. Option C may come off as defensive or dismissive, questioning the mother's observation. Therefore, the best response is to acknowledge the normalcy of teenage behavior regarding sexual interest.
4. When giving an intramuscular injection to an infant, which of the following sites is preferred?
- A. Ventrogluteal region
- B. Deltoid
- C. Vastus lateralis
- D. Dorsogluteal region
Correct answer: C
Rationale: The correct answer is the Vastus lateralis when giving an intramuscular injection to an infant. The Vastus lateralis muscle, located in the thigh, is the preferred site for infants as it has a larger muscle mass and is well-developed, making it suitable for injections. The Ventrogluteal region and Dorsogluteal region are not recommended for infants due to their smaller muscle mass and potential risk of damaging nearby structures. The Deltoid muscle is typically used for older children and adults, not infants.
5. When preparing a client for platelet pheresis in the blood bank, which information is most significant to obtain during the history assessment?
- A. Allergies to shellfish
- B. Date of last platelet donation
- C. Time of last oral intake
- D. Blood type
Correct answer: B
Rationale: The most significant information to gather when a client is scheduled for platelet pheresis is the date of their last platelet donation. Platelet donors can typically have their platelets apheresed as frequently as every 14 days. Knowing the date of the last donation helps ensure the client is eligible for the procedure without risking any adverse effects from frequent donations. Allergies to shellfish may be important for other procedures where anticoagulants containing heparin are used, but it is not directly related to platelet pheresis. The time of the last oral intake is more crucial for procedures requiring sedation or anesthesia. Blood type is significant for blood transfusions but is not the primary concern for platelet pheresis.
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