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A nurse is completing an assessment using the PQRST to obtain data about the patient’s chest pain. Match the questions to the components of the PQRST that the nurse will be using.
- A. Where is the pain located?
- B. What causes the pain?
- C. Does it come and go?
- D. What does the pain feel like?
Correct Answer: A
Rationale: The correct answer is A: Where is the pain located? In the PQRST mnemonic, "P" stands for provocation, "Q" for quality, "R" for region/radiation, "S" for severity, and "T" for timing. The question "Where is the pain located?" corresponds to the "R" component, which is region/radiation. This question helps the nurse identify the specific area where the pain is localized, which can provide valuable information for diagnosis.
Explanation of other choices:
B: What causes the pain? This question relates more to the "P" component, which is provocation, rather than the region/radiation aspect.
C: Does it come and go? This question pertains to the "T" component, which is timing, focusing on the pattern of the pain rather than the specific location.
D: What does the pain feel like? This question is more aligned with the "Q" component, which is quality,
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A complete blood count is commonly performed before a client goes into surgery. What does this test seek to identify?
- A. Potential hepatic dysfunction indicated by decreased blood urea nitrogen (BUN) and creatinine levels
- B. Low levels of urine constituents normally excreted in the urine
- C. Abnormally low hematocrit (HCT) and hemoglobin (Hb) levels
- D. Electrolyte imbalance that could affect the blood’s ability to coagulate properly
Correct Answer: C
Rationale: Rationale for Correct Answer (C): A complete blood count (CBC) is used to identify abnormalities in red blood cells, white blood cells, and platelets. Hematocrit (HCT) and hemoglobin (Hb) levels are part of a CBC and indicate the oxygen-carrying capacity of the blood. Abnormally low HCT and Hb levels can signify conditions like anemia, which can impact a client's ability to undergo surgery due to potential complications related to oxygen delivery.
Summary of Incorrect Choices:
A: Potential hepatic dysfunction is not directly related to a CBC, and BUN/creatinine levels are markers for kidney function, not liver function.
B: Low levels of urine constituents are not assessed in a CBC, which focuses on blood components.
D: Electrolyte imbalance is not specifically tested in a CBC; it is usually evaluated through separate blood tests. Coagulation factors are not directly measured in a CBC.
The nurse is preparing an intravenous infusion of phenytoin (Dilantin) as prescribed by the physician for the client with seizures. Which of the following solutions will the nurse plan to use to dilute this medication?
- A. Dextrose 5%
- B. Lactated Ringer’s solution
- C. Normal saline solution
- D. Dextrose 5% and half-normal saline (0.45%)
Correct Answer: C
Rationale: The correct answer is C: Normal saline solution. Phenytoin is incompatible with dextrose solutions, so options A and D are incorrect. Lactated Ringer's solution contains calcium, which can interact with phenytoin, leading to precipitation. Therefore, option B is also incorrect. Normal saline is the most compatible diluent for phenytoin, maintaining the drug's stability and effectiveness. It is essential to use the appropriate diluent to prevent adverse reactions or drug interactions.
The activation of B cells in humoral immunity is assisted by which of the following?
- A. Cytotoxic T cells
- B. Suppressor T cells
- C. Helper T cells
- D. Neutrophils
Correct Answer: C
Rationale: The correct answer is C: Helper T cells. Helper T cells play a crucial role in activating B cells by releasing cytokines that stimulate B cell proliferation and differentiation. They also help in the production of antibodies. Cytotoxic T cells (A) are involved in cell-mediated immunity, not humoral immunity. Suppressor T cells (B) regulate the immune response and do not directly assist in B cell activation. Neutrophils (D) are phagocytic cells involved in innate immunity, not in activating B cells in humoral immunity.
The nurse is using critical thinking skills during the first phase of the nursing process. Which action indicates the nurse is in the first phase?
- A. Completes a comprehensive database
- B. Identifies pertinent nursing diagnoses
- C. Intervenes based on priorities of patient care
- D. Determines whether outcomes have been achieved
Correct Answer: A
Rationale: The correct answer is A because completing a comprehensive database is part of the first phase of the nursing process, which is assessment. During assessment, the nurse gathers data about the patient's health status. This information is crucial for identifying health problems, developing nursing diagnoses, planning interventions, and evaluating outcomes.
Choice B is incorrect because identifying nursing diagnoses is part of the second phase, which is diagnosis. Choice C is incorrect as intervening based on priorities of patient care is part of the third phase, which is planning. Choice D is incorrect because determining whether outcomes have been achieved is part of the fourth phase, which is evaluation.
Which of the following lab value profiles should the nurse know to be consistent with hemolytic anemia?
- A. Increased RBC, decreased bilirubin, decreased Hgb and Hct, increased reticulocytes
- B. Decreased RBC, increased bilirubin, decreased Hgb and Hct, increased reticulocytes
- C. Decreased RBC, decreased bilirubin, increased Hgb and Hct, decreased reticulocytes
- D. Increased RBC, increased bilirubin, increased Hgb and Hct, decreased reticulocytes
Correct Answer: A
Rationale: Step-by-step rationale for the correct answer (A):
1. Increased RBC: Hemolytic anemia leads to increased RBC production as the body compensates for the destruction of red blood cells.
2. Decreased bilirubin: Bilirubin levels decrease due to the accelerated breakdown of red blood cells.
3. Decreased Hgb and Hct: Hemolysis causes a decrease in hemoglobin and hematocrit levels as red blood cells are destroyed.
4. Increased reticulocytes: Reticulocytes are immature red blood cells released by the bone marrow in response to increased RBC destruction.
Summary:
- Choice B is incorrect as hemolytic anemia would lead to increased, not decreased, bilirubin levels.
- Choice C is incorrect as hemolytic anemia would lead to decreased, not increased, Hgb and Hct levels.
- Choice D is incorrect as hemolytic anemia would not lead to increased levels of all parameters