test bank foundations of nursing

Correct Answer: B

Rationale: The correct answer is B: Contraction of bronchial smooth muscle. Histamine release can lead to bronchoconstriction, which narrows the airways and causes difficulty in breathing. This is a common symptom in allergic reactions like asthma. Constriction of small venules (Choice A) is not a typical consequence of histamine release. Dilation of large blood vessels (Choice C) is more associated with histamine's role in increasing vascular permeability. Decreased secretions from gastric and mucosal cells (Choice D) is not directly related to histamine's effects on smooth muscle contraction.

Correct Answer: C

Rationale: The correct answer is C: Normal deep tendon reflexes. This indicates a therapeutic level of magnesium sulfate as it shows that the medication is effectively preventing hyperreflexia, a common sign of magnesium toxicity. Drowsiness (choice A) can indicate toxicity. Urinary output of 20 mL/hour (choice B) is not specific to magnesium sulfate levels. Respiratory rate of 10 to 12 breaths per minute (choice D) is indicative of respiratory depression, a sign of magnesium toxicity. Thus, choice C is the best assessment to indicate a therapeutic level of medication in a patient with preeclampsia taking magnesium sulfate.

Correct Answer: A

Rationale: Step 1: Handwashing is crucial in preventing the spread of viral conjunctivitis, which is highly contagious. Step 2: Children often touch their eyes and then surfaces, aiding in disease transmission. Step 3: Educating parents and the child on proper hand hygiene can help contain the infection. Step 4: Antibiotics are not effective against viral infections, so compliance is not necessary. Step 5: Complications like meningitis and septicemia are extremely rare with viral conjunctivitis. Step 6: Surgery is not indicated for viral conjunctivitis, as it is a self-limiting condition.

Correct Answer: A

Rationale: The correct answer is A: Tumor lysis syndrome (TLS). In this scenario, the oncology patient has completed treatment for non-Hodgkin lymphoma. TLS is a potential complication post-treatment due to the rapid breakdown of cancer cells, leading to release of intracellular contents like potassium, phosphorus, and uric acid into the bloodstream. This can result in electrolyte imbalances, renal failure, and cardiac arrhythmias. The nurse should assess for signs such as hyperkalemia, hyperphosphatemia, hypocalcemia, and elevated uric acid levels. Monitoring renal function and fluid status is crucial. Summary of other choices: B: Syndrome of inappropriate ADH (SIADH) is characterized by excessive release of antidiuretic hormone leading to water retention and dilutional hyponatremia. Not typically associated with post-treatment complications in oncology patients. C: Disseminated intravascular coagulation (DIC)

Correct Answer: C

Rationale: The correct answer is C: Avoid lifting objects heavier than 10 pounds. This recommendation is crucial post-mastectomy as it helps prevent lymphedema and promotes healing without causing strain on the surgical site. Lifting heavy objects can lead to complications such as lymphedema or disruption of the healing process. Options A, B, and D are incorrect as avoiding exercise of the arm for 2 months may lead to stiffness and reduced range of motion, keeping cuticles clipped neatly does not directly affect rehabilitation, and using a sling is not necessary unless specifically advised by the healthcare provider.