Nokea
Which of the ff. positions is best for a chest drainage system when the patient is being transported by wheelchair?
- A. Hang it on the top of the wheelchair backrest.
- B. Place it on the patient’s feet and ask the patient to hold it.
- C. Hang it on the same pole as the patient’s IV.
- D. Place it in the patient’s lap.
Correct Answer: A
Rationale: The correct answer is A because hanging the chest drainage system on the top of the wheelchair backrest ensures that the system remains upright and secured during transportation, reducing the risk of accidental disconnection or leakage. Placing it on the patient's feet (B), hanging it with the IV pole (C), or placing it in the patient's lap (D) can lead to potential complications such as pulling or kinking the drainage tubing, increasing the risk of infection or injury to the patient.
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A registered nurse administers pain medication to a patient suffering from fractured ribs. Which type of nursing intervention is this nurse implementing?
- A. Collaborative
- B. Independent
- C. Interdependent
- D. Dependent
Correct Answer: D
Rationale: The correct answer is D: Dependent. In this scenario, the nurse is administering pain medication based on a healthcare provider's prescription, which demonstrates a dependent nursing intervention. The nurse is reliant on the provider's order to carry out this action. Collaborative interventions involve working with other healthcare professionals, independent interventions are actions that nurses can initiate without supervision, and interdependent interventions involve mutual goal-setting and decision-making among healthcare team members.
A client is receiving methotrexate (Mexate), 12g/m2 IV to treat osteogenic carcinoma. During methotrexate therapy, the nurse expects the client to receive which other drug to protect normal cells?
- A. Probenecid (Benemid)
- B. Cytarabine (ara-C, cystosine arabinoside [Cytosar-U])
- C. Thioguanine (6-thioguanine, 6-TG)
- D. Leucovorin (Citrovorum factor or folinic acid [wellcovirin])
Correct Answer: D
Rationale: The correct answer is D, Leucovorin. Leucovorin is administered with methotrexate to protect normal cells from methotrexate toxicity by acting as a "rescue" agent. Methotrexate inhibits dihydrofolate reductase, leading to decreased levels of tetrahydrofolate needed for DNA synthesis. Leucovorin bypasses this step by directly providing the reduced form of folic acid, thus preventing toxicity in normal cells. Probenecid (choice A) is not used to protect normal cells during methotrexate therapy. Cytarabine (choice B) and Thioguanine (choice C) are not rescue agents for methotrexate toxicity.
A client is diagnosed with rheumatoid arthritis, an autoimmune disorder. When teaching the client and family about autoimmune disorders, the nurse should provide which information?
- A. Clients with autoimmune disorders may have false-negative but not false-positive serologic tests
- B. Advanced medical interventions can cure most autoimmune disorders
- C. Autoimmune disorders include connective tissue (collagen) disorders
- D. Autoimmune disorders are distinctive, adding differential diagnosis
Correct Answer: C
Rationale: Correct Answer: C - Autoimmune disorders include connective tissue (collagen) disorders.
Rationale: Autoimmune disorders involve the immune system mistakenly attacking healthy cells and tissues in the body, which can lead to various conditions, including connective tissue disorders like rheumatoid arthritis. Providing this information to the client and family is crucial for understanding the nature of autoimmune disorders and the potential impact on the body.
Summary of other choices:
A: False-negative or false-positive serologic tests can occur in autoimmune disorders, so this statement is not specific enough to be the most appropriate information to provide.
B: Advanced medical interventions can manage symptoms but not cure autoimmune disorders, making this statement inaccurate and misleading.
D: Autoimmune disorders can present with a wide range of symptoms and can be challenging to diagnose, but this statement does not address the specific link between autoimmune disorders and connective tissue disorders.
Postural Hypotension is A drop in systolic pressure less than 10 mmHg when patient changes position from lying to sitting.
- A. A drop in systolic pressure greater than 10 mmHg when patient changes position from lying to sitting
- B. A drop in diastolic pressure less than 10 mmHg when patient changes position from lying to sitting
- C. A drop in diastolic pressure greater than 10 mmHg when patient changes position from lying to sitting
Correct Answer: A
Rationale: The correct answer is A because postural hypotension is defined as a drop in systolic blood pressure of greater than 20 mmHg or a drop in diastolic blood pressure of greater than 10 mmHg within 3 minutes of standing from a sitting or supine position. Therefore, a drop in systolic pressure greater than 10 mmHg when changing from lying to sitting is indicative of postural hypotension.
Choice B is incorrect as postural hypotension is primarily defined by changes in systolic blood pressure, not diastolic. Choice C is incorrect because a drop in diastolic pressure greater than 10 mmHg is not the defining characteristic of postural hypotension. Choice D is not provided.
A client is diagnosed with megaloblastic anemia caused by vitamin B12 deficiency. The physician begins the client on cyanocobalamin (Betalin-12), 100mcg IM daily. Which substance influences Vitamin B12 absorption?
- A. Intrinsic factor
- B. Histamine
- C. Hydrochloric acid
- D. Liver enzyme
Correct Answer: A
Rationale: Step 1: Vitamin B12 is absorbed in the small intestine with the help of intrinsic factor produced by parietal cells in the stomach.
Step 2: Intrinsic factor binds to vitamin B12, forming a complex that is then absorbed in the ileum.
Step 3: If intrinsic factor is lacking (as seen in pernicious anemia), vitamin B12 absorption is impaired, leading to megaloblastic anemia.
Step 4: Administering cyanocobalamin bypasses the need for intrinsic factor.
Step 5: Thus, intrinsic factor influences Vitamin B12 absorption. Other choices (B, C, D) do not play a direct role in Vitamin B12 absorption.