Nokea
An adult client has undergone a lumbar puncture to obtain cerebrospinal fluid (CSF) for analysis. After reviewing the results of the analysis, the nurse recognizes that the CSF is normal when which element is negative?
- A. Protein
- B. Glucose
- C. Red blood cells
- D. White blood cells
Correct Answer: C
Rationale: The adult with a normal CSF has no red blood cells in the CSF. Protein (15-45 mg/dL [0.15-0.45 g/L]) and glucose (50-75 mg/dL [2.8-4.2 mmol/L]) are normally present in CSF. The client may have small levels of white blood cells (0-5 cells/mcL [0-5 × 10^6/L]).
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The nurse is assessing a client diagnosed with cardiac disease at the 30 weeks' gestation antenatal visit. The nurse assesses lung sounds in the lower lobes after a routine blood pressure screening. The nurse performs this assessment to elicit what information?
- A. Identify mitral valve prolapse.
- B. Identify cardiac dysrhythmias.
- C. Rule out the possibility of pneumonia.
- D. Assess for early signs of heart failure (HF).
Correct Answer: D
Rationale: Fluid volume during pregnancy peaks between 18 and 32 weeks' gestation. During this period, it is essential to observe and record maternal data that would indicate further signs of cardiac decompensation or HF in the pregnant client with cardiac disease. By assessing lung sounds, the nurse may identify early symptoms of diminished oxygen exchange and potential HF. Options 1, 2, and 3 are not related to the data in the question.
A client is intubated and receiving mechanical ventilation. The primary health care provider has added 7 cm of positive end-expiratory pressure (PEEP) to the client's ventilator settings. The nurse should assess for which expected but adverse effect of PEEP?
- A. Decreased peak pressure on the ventilator
- B. Increased rectal temperature from 98°F to 100°F
- C. Decreased heart rate from 78 to 64 beats per minute
- D. Systolic blood pressure decrease from 122 to 98 mm Hg
Correct Answer: D
Rationale: PEEP improves oxygenation by enhancing gas exchange and preventing atelectasis. PEEP leads to increased intrathoracic pressure, which in turn leads to decreased cardiac output. This is manifested in the client by decreased systolic blood pressure and increased pulse (compensatory). Peak pressures on the ventilator should not be affected, although the pressure at the end of expiration remains positive at the level set for the PEEP. Fever indicates respiratory infection or infection from another source.
The nurse is performing pin-site care on a client in skeletal traction. Which normal finding should the nurse expect to note when assessing the pin sites?
- A. Loose but intact pin sites
- B. Clear drainage from the pin sites
- C. Purulent drainage from the pin sites
- D. Redness and swelling around the pin sites
Correct Answer: B
Rationale: A small amount of clear drainage ('weeping') may be expected after cleaning and removing crusting around the pin sites of skeletal traction. Pins should not be loose; if this is noted, the primary health care provider should be notified. Purulent drainage and redness and swelling around the pin sites may be indicative of an infection.
During a health assessment, the client tells the nurse that she was diagnosed with endometriosis. Which explanation presented by the client demonstrates an understanding of the description of the condition?
- A. Endometriosis is known as primary dysmenorrhea.
- B. Endometriosis is what causes me the pain that occurs when I ovulate.
- C. Endometriosis is the condition that has caused me to stop menstruating.
- D. Endometriosis means that I have uterine tissue growing outside my uterus.
Correct Answer: D
Rationale: Endometriosis is defined as the presence of tissue outside the uterus that resembles the endometrium in structure, function, and response to estrogen and progesterone during the menstrual cycle. Mittelschmerz refers to pelvic pain that occurs midway between menstrual periods coinciding with ovulation. Primary dysmenorrhea refers to menstrual pain without identified pathology. Amenorrhea, the cessation of menstruation for a period of at least 3 cycles or 6 months in a woman who has established a pattern of menstruation, can result from a variety of causes.
A client diagnosed with myasthenia gravis is experiencing prolonged periods of weakness, and the primary health care provider prescribes an edrophonium test, also known as a Tensilon test. A test dose is administered and the client becomes weaker. How should the nurse interpret these results?
- A. Myasthenic crisis is present.
- B. Cholinergic crisis is present.
- C. This result is a normal finding.
- D. This result is a positive finding.
Correct Answer: B
Rationale: An edrophonium test may be performed to determine whether increasing weakness in a client with previously diagnosed myasthenic is a result of cholinergic crisis (overmedication) with anticholinesterase medications or myasthenic crisis (undermedication). Worsening of the symptoms after the test dose of medication is administered indicates a cholinergic crisis.