Nokea
A nurse assessing a client charts his blood pressure as 134/86. The pulse pressure would be
- A. 48
- B. 86
- C. 220
- D. 96
Correct Answer: A
Rationale: Pulse pressure is calculated as systolic BP minus diastolic BP: 134 - 86 = 48 mmHg.
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The nurse is caring for a client admitted with suspected myasthenia gravis. Which finding is usually associated with a diagnosis of myasthenia gravis?
- A. Visual disturbances, including diplopia
- B. Ascending paralysis and loss of motor function
- C. Cogwheel rigidity and loss of coordination
- D. Progressive weakness that is worse at the day's end
Correct Answer: D
Rationale: Myasthenia gravis is characterized by muscle weakness that worsens with activity and improves with rest, typically more pronounced at the end of the day.
The client with color blindness will most likely have problems distinguishing which of the following colors?
- A. Orange
- B. Violet
- C. Red
- D. White
Correct Answer: C
Rationale: Red-green color blindness is the most common type, making it difficult to distinguish red.
The nurse is reviewing the lab results of four clients. Which finding should be reported to the physician?
- A. A client with chronic renal failure with a serum creatinine of 5.6 mg/dL
- B. A client with rheumatic fever with a positive C reactive protein
- C. A client with gastroenteritis with a hematocrit of 52%
- D. A client with epilepsy with a white cell count of 3,800 mm³
Correct Answer: C
Rationale: A hematocrit of 52% in gastroenteritis suggests dehydration, which requires immediate reporting.
The nurse is observing a student nurse administering ear drops to a 2-year-old. Which observation by the nurse would indicate correct technique?
- A. Holds the child's head up and extended
- B. Places the head in chin-tuck position
- C. Pulls the pinna down and back
- D. Irrigates the ear before administering medication
Correct Answer: C
Rationale: For children under 3, pulling the pinna down and back straightens the ear canal for proper ear drop administration.
The nurse receives an order for blood cultures and sensitivity for a client. Which statement is correct concerning this test?
- A. Preliminary test results are available 36 hours to allow the organisms time to grow.
- B. Growth and identification of the organism often takes 48 to 72 hours to complete.
- C. If the client has IV antibiotics infusing, stop the infusion before drawing blood cultures.
- D. If catheter sepsis is suspected, culturing the catheter tip is more accurate for identification.
Correct Answer: B
Rationale: Blood culture results typically take 48–72 hours for organism identification. Stopping antibiotics or culturing catheter tips is not standard practice.