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To monitor for a temporary but common postsurgical complication of a transsphenoidal resection of the pituitary gland, the nurse should regularly perform which assessment?
- A. Pulse rate
- B. Temperature
- C. Urine output
- D. Oxygen saturation
Correct Answer: C
Rationale: A common complication of surgery on the pituitary gland is temporary diabetes insipidus. This results from a deficiency in antidiuretic hormone (ADH) secretion as a result of surgical trauma. The nurse measures the client's urine output to determine whether this complication is occurring. Polyuria of 4 to 24 L per day is characteristic of this complication. Options 1, 2, and 4 are not specifically related to a common complication after this surgery.
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The nurse is teaching a client diagnosed with chronic obstructive pulmonary disease (COPD) how to do pursed-lip breathing. Evaluation of understanding is evident if the client performs which action?
- A. Breathes in and then holds the breath for 30 seconds
- B. Loosens the abdominal muscles while breathing out
- C. Inhales with puckered lips and exhales with the mouth open wide
- D. Breathes so that expiration is two to three times as long as inspiration
Correct Answer: D
Rationale: COPD is a disease state characterized by airflow obstruction. Prolonging expiration time reduces air trapping caused by airway narrowing that occurs in COPD. The client is not instructed to breathe in and hold the breath for 30 seconds; this action has no useful purpose for the client with COPD. Tightening (not loosening) the abdominal muscles aids in expelling air. Exhaling through pursed lips (not with the mouth wide open) increases the intraluminal pressure and prevents the airways from collapsing.
The nurse is performing an assessment on a postterm infant. Which physical characteristic should the nurse expect to observe in this infant?
- A. Peeling of the skin
- B. Smooth soles without creases
- C. Lanugo covering the entire body
- D. Vernix that covers the body in a thick layer
Correct Answer: A
Rationale: The postterm infant (born after the 42nd week of gestation) exhibits dry, peeling, cracked, almost leather-like skin over the body, which is called desquamation. The preterm infant (born between 24 and 37 weeks of gestation) exhibits smooth soles without creases, lanugo covering the entire body, and thick vernix covering the body.
The nurse reviews the client's most recent blood gas results that include a pH of 7.43, PCO2 of 31 mm Hg, and HCO3 of 21 mEq/L. Based on these results, the nurse determines that which acid-base imbalance is present?
- A. Compensated metabolic acidosis
- B. Compensated respiratory alkalosis
- C. Uncompensated respiratory acidosis
- D. Uncompensated metabolic alkalosis
Correct Answer: B
Rationale: The normal pH is 7.35 to 7.45, the normal PCO2 is 35 to 45 mm Hg, and the normal HCO3 is 22 to 27 mEq/L. The pH is elevated in alkalosis and low in acidosis. In a respiratory condition, the pH and the PCO2 move in opposite directions; that is, the pH rises and the PCO2 drops (alkalosis) or vice versa (acidosis). In a metabolic condition, the pH and the bicarbonate move in the same direction; if the pH is low, the bicarbonate level will be low also. In this client, the pH is at the high end of normal, indicating compensation and alkalosis. The PCO2 is low, indicating a respiratory condition (opposite direction of the pH).
The nurse is caring for a client who is receiving tobramycin sulfate intravenously every 8 hours. Which result should indicate to the nurse that the client is experiencing an adverse effect of the medication?
- A. A total bilirubin of 0.5 mg/dL (8.5 mcmol/L)
- B. An erythrocyte sedimentation rate of 15 mm/hour
- C. A blood urea nitrogen (BUN) of 30 mg/dL (10.8 mmol/L)
- D. A white blood cell count (WBC) of 6000 mm³ (6 × 10â¹/L)
Correct Answer: C
Rationale: Tobramycin sulfate is an aminoglycoside antibiotic. Adverse effects or toxic effects of tobramycin sulfate include nephrotoxicity as evidenced by an increased BUN and serum creatinine; irreversible ototoxicity as evidenced by tinnitus, dizziness, ringing or roaring in the ears, and reduced hearing; and neurotoxicity as evidenced by headaches, dizziness, lethargy, tremors, and visual disturbances. The normal BUN ranges from 10 to 20 mg/dL (3.6 to 7.1 mmol/L), depending on the laboratory. The normal total bilirubin level ranges from 0.3 to 1.0 mg/dL (5.1 to 17 mcmol/L). The normal sedimentation rate for a male is ≤15 mm/hr and for a female is ≤20 mm/hr. A normal WBC count is 5000 to 10,000 mm³ (5 to 10 × 10â¹/L).
The nurse is preparing to measure the fundal height of a client whose fetus is 28 weeks' gestation. In what position should the nurse place the client to perform the procedure?
- A. In a standing position
- B. In the Trendelenburg position
- C. Supine with the head of the bed elevated to 45 degrees
- D. Supine with her head on a pillow and knees slightly flexed
Correct Answer: D
Rationale: When measuring fundal height, the client lies in a supine (back) position with her head on a pillow and knees slightly flexed. The standing position, Trendelenburg (head lowered), or supine with the head of the bed elevated to 45 degrees would prevent the nurse from getting an accurate measurement.