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A client diagnosed with myxedema reports having experienced a lack of energy, cold intolerance, and puffiness around the eyes and face. The nurse plans care knowing that these clinical manifestations are caused by a lack of production of which hormones? Select all that apply.
- A. Thyroxine (T4)
- B. Prolactin (PRL)
- C. Triiodothyronine (T3)
- D. Growth hormone (GH)
- E. Luteinizing hormone (LH)
- F. Adrenocorticotropic hormone (ACTH)
Correct Answer: A,C
Rationale: Although all of these hormones originate from the anterior pituitary, only T3 and T4 are associated with the client's symptoms. Myxedema results from inadequate thyroid hormone levels (T3 and T4). Low levels of thyroid hormone result in an overall decrease in the basal metabolic rate, affecting virtually every body system and leading to weakness, fatigue, and a decrease in heat production. A decrease in LH results in the loss of secondary sex characteristics. A decrease in ACTH is seen in Addison's disease. PRL stimulates breast milk production by the mammary glands, and GH affects bone and soft tissue by promoting growth through protein anabolism and lipolysis.
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The nurse is scheduling a client for a series of diagnostic studies of the gastrointestinal (GI) system. Which of these studies should the nurse schedule last to avoid altering the results of the remaining tests?
- A. Ultrasound
- B. Colonoscopy
- C. Barium enema
- D. Computed tomography
Correct Answer: C
Rationale: When barium is instilled into the lower GI tract, it may take up to 72 hours to clear the GI tract. The presence of barium could cause interference with obtaining clear visualization and accurate results of the other tests listed if performed before the client has fully excreted the barium. For this reason, diagnostic studies that involve barium contrast are scheduled at the conclusion of other medical imaging studies.
A newborn infant is diagnosed with esophageal atresia. Which assessment finding supports this diagnosis?
- A. Slowed reflexes
- B. Continuous drooling
- C. Diaphragmatic breathing
- D. Passage of large amounts of frothy stool
Correct Answer: B
Rationale: In esophageal atresia, the esophagus terminates before it reaches the stomach, ending in a blind pouch. This condition prevents the passage of swallowed mucus and saliva into the stomach. After fluid has accumulated in the pouch, it flows from the mouth and the infant then drools continuously. Responsiveness of the infant to stimulus would depend on the overall condition of the infant and is not considered a classic sign of esophageal atresia. Diaphragmatic breathing is not associated with this disorder. The inability to swallow amniotic fluid in utero prevents the accumulation of normal meconium, and lack of stools results.
The hemoglobin levels of a client in her first trimester of pregnancy are indicative of iron deficiency anemia. Which assessment findings support the diagnosis of this type of anemia? Select all that apply.
- A. Yellowish sclera
- B. Reports of severe fatigue
- C. Pink mucous membranes
- D. Increased vaginal secretions
- E. Reports of frequent headaches
- F. Reports of increased frequency of voiding
Correct Answer: B,E
Rationale: Iron deficiency anemia is described as a hemoglobin blood concentration of less than 10.5 to 11.0 g/dL (105 to 110 mmol/L). Complaints of headaches and severe fatigue are abnormal findings and may reflect complications of this type of anemia caused by the decreased oxygen supply to vital organs. Options 3, 4, and 6 are normal findings in the first trimester of pregnancy. Yellow sclera (whites of the eyes) is associated with jaundice.
A clinic nurse is assessing a prenatal client who has been diagnosed with heart disease. The nurse carefully assesses the client's vital signs, weight, and fluid and nutritional status to detect for complications caused by which pregnancy-related concern?
- A. Rh incompatibility
- B. Fetal cardiomegaly
- C. The increase in circulating blood volume
- D. Hypertrophy and increased contractility of the heart
Correct Answer: C
Rationale: Pregnancy taxes the circulating system of every woman because the blood volume increases, which causes the cardiac output to increase. Stroke volume × heart rate = cardiac output (SV × HR = CO). Options 1, 2, and 4 are not directly associated with pregnancy in a client with a cardiac condition.
The nurse instructs a preoperative client about the proper use of an incentive spirometer. What result should the nurse use to determine that the client is using the incentive spirometer effectively?
- A. Cloudy sputum
- B. Shallow breathing
- C. Unilateral wheezing
- D. Productive coughing
Correct Answer: D
Rationale: Incentive spirometry helps reduce atelectasis, open airways, stimulate coughing, and help mobilize secretions for expectoration, via vital client participation in recovery. Cloudy sputum, shallow breathing, and wheezing indicate that the incentive spirometry is not effective because they point to infection, counterproductive depth of breathing, and bronchoconstriction, respectively.