Explanation
(A) A tension pneumothorax is an accumulation of air in the pleural space. Important physical assessment findings to confirm this condition include cyanosis, jugular vein distention, absent breath sounds on the affected side, distant heart sounds, and lowered blood pressure. (B) Asthma is a disorder in which there is an airflow obstruction in the bronchioles and smaller bronchi secondary to bronchospasm, swelling of mucous membranes, and increased mucus production.Physical assessment reveals some important findings: agitation, nasal flaring, tachypnea, and expiratory wheezing. (C) Pneumonia is an acute bacterial or viral infection that causes inflammation of the lung in the alveolar and interstitial tissue and results in consolidation. Specific assessment findings to confirm this condition include decreased chest expansion caused by pleuritic pain, dullness on percussion over consolidated areas, decreased breath sounds, and increased vocal fremitus. (D) A pulmonary embolus is the passage of a foreign substance (blood clot, fat, air, or amniotic fluid) into the pulmonary artery or its branches, with subsequent obstruction of blood supply to lung tissue. Specific assessment findings that confirm this condition include tachypnea, tachycardia, crackles (rales), transient friction rub, diaphoresis, edema, and cyanosis.

(A) In the past, neutralizing solutions were recommended, but presently there is concern that these solutions extend the depth of burn area. (B) The use of large amounts of water to flush the area is recommended for chemical burns. (C) Calcium chloride is not recommended therapy and would likely worsen the problem. (D) Lanolin is of no benefit in the initial treatment of a chemical injury and may actually extend a thermal injury.

(A) Children experience impatience with soiled diapers when readiness for training is apparent. They often desire to be changed immediately. (B) A child must be able to use verbal or nonverbal skills to communicate needs. (C) A readiness indicator would be awaking dry from naps. (D) The age at which a sibling was toilet trained has no implications for training this child.

(A)
Increased calories may result in weight gain, but there is no indication in this question that this man's diet has changed in a way that would result in increased calories. (B) Decreasing cardiac output stimulates the renin-angiotensin-aldosterone cycle and results in fluid retention, which is reflected by weight gain. (C) Decreasing renal function may result in fluid retention, but this question gives no indication that this man has any renal problems.
(D)
Profound diuresis occurs with diabetes insipidus, which results in weight loss.

Section: Questions Set D
Explanation:
(A) Mobilization is important but not absolutely essential. (B) Discharge teaching should be initiated prior to surgery as well as during the postoperative period. (C) Assessment and management of pain are necessary and high in priority. (D) Neurovascular status of the extremity is of primary importance. The risk of circulatory impairment exists with any cast application. This type of fracture is common in children. A high incidence of neurovascular complications exists with fractures near the elbow.