ATI LPN
ATI Learning System PN Medical Surgical Final Quizlet
1. A patient with a diagnosis of deep vein thrombosis (DVT) is receiving heparin therapy. Which laboratory test should the nurse monitor to evaluate the effectiveness of the heparin therapy?
- A. Prothrombin time (PT)
- B. Partial thromboplastin time (PTT)
- C. Bleeding time
- D. Platelet count
Correct answer: B
Rationale: The correct answer is B: Partial thromboplastin time (PTT). Heparin affects the intrinsic pathway of the coagulation cascade, which is reflected by changes in the PTT. Monitoring the PTT helps ensure that the patient's blood is within the desired therapeutic range and prevents complications related to clotting or bleeding. Prothrombin time (PT) primarily assesses the extrinsic pathway and is not as sensitive to heparin therapy. Bleeding time and platelet count are not specific tests for monitoring the effectiveness of heparin therapy in DVT.
2. The community mental health nurse is planning to visit four clients with schizophrenia today. Which client should the nurse see first?
- A. The mother who took her children from school because aliens were after them.
- B. The young man who has a history of substance abuse and no telephone.
- C. The newly diagnosed client who needs to be evaluated for medication compliance.
- D. The young woman who believes she is to blame for her recent miscarriage.
Correct answer: A
Rationale: The mother who took her children from school due to delusions of aliens poses a significant risk to her children and herself. This situation requires immediate attention to ensure the safety and well-being of all involved. Choice B is concerning due to the history of substance abuse, but the immediate risk to life and safety as in Choice A takes precedence. Choice C, although important, does not present an immediate danger as the delusional belief of aliens. Choice D, while emotionally distressing, does not pose an immediate threat as the situation described in Choice A.
3. A client who is acutely ill has vigilant oral care included in their plan of care. What factor increases this client's risk for dental caries?
- A. Hormonal changes induced by the stress response leading to an acidic oral environment
- B. Systemic infections commonly affecting the teeth
- C. Intravenous hydration lacking fluoride
- D. Inadequate nutrition and reduced saliva production contributing to cavities
Correct answer: D
Rationale: Inadequate nutrition and decreased saliva production can lead to a conducive environment for the development of dental caries. Without proper nutrition and sufficient saliva, the protective mechanisms against cavities are compromised, making the individual more susceptible to tooth decay.
4. A healthcare professional is assessing a client with severe dehydration. Which finding indicates a need for immediate intervention?
- A. Heart rate of 110 beats per minute.
- B. Blood pressure of 90/60 mm Hg.
- C. Urine output of 20 ml/hour.
- D. Dry mucous membranes.
Correct answer: C
Rationale: A urine output of 20 ml/hour indicates severe dehydration and impaired renal function. This finding suggests a critical state where the kidneys are conserving water, leading to reduced urine output. Immediate intervention is required to restore fluid balance and prevent further complications associated with severe dehydration. Choice A, a heart rate of 110 beats per minute, may indicate dehydration but is not as severe as the critically low urine output. Choice B, a blood pressure of 90/60 mm Hg, can be seen in dehydration but is not as concerning as the extremely low urine output. Choice D, dry mucous membranes, is a common sign of dehydration but does not require immediate intervention compared to the severely reduced urine output.
5. A client with a history of diabetes mellitus presents with confusion, sweating, and palpitations. What should the nurse do first?
- A. Check the client's blood glucose level.
- B. Administer 10 units of insulin.
- C. Give the client a high-protein snack.
- D. Measure the client's blood pressure.
Correct answer: A
Rationale: The correct first action for a client presenting with confusion, sweating, and palpitations, suggestive of hypoglycemia, is to check the client's blood glucose level. This step helps to confirm if the symptoms are due to low blood sugar levels and guides appropriate interventions. Administering insulin without knowing the current blood glucose level can be dangerous and is not recommended as the initial step. Offering a high-protein snack may be necessary after confirming hypoglycemia, but checking the blood glucose level takes precedence. Measuring blood pressure is not the priority in this situation; addressing hypoglycemia is the immediate concern.
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