Nokea
A healthcare professional is reviewing a patient's chart and notices that the patient suffers from conjunctivitis. Which of the following microorganisms is related to this condition?
- A. Yersinia pestis
- B. Helicobacter pylori
- C. Vibrio cholerae
- D. Haemophilus aegyptius
Correct Answer: D
Rationale: The correct answer is Haemophilus aegyptius. Haemophilus influenzae biogroup aegyptius (Hae) is a causative agent of acute and often purulent conjunctivitis, more commonly known as pink eye. Yersinia pestis, Helicobacter pylori, and Vibrio cholerae are not associated with conjunctivitis. Yersinia pestis causes the plague, Helicobacter pylori is associated with gastric ulcers, and Vibrio cholerae causes cholera.
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During an assessment of a client with cardiomyopathy, the nurse finds that the systolic blood pressure has decreased from 145 to 110 mm Hg and the heart rate has risen from 72 to 96 beats per minute, and the client complains of periodic dizzy spells. The nurse instructs the client to:
- A. Increase fluids that are high in protein
- B. Restrict fluids
- C. Force fluids and reassess blood pressure
- D. Limit fluids to non-caffeine beverages
Correct Answer: D
Rationale: In this scenario, the client with cardiomyopathy is exhibiting signs of orthostatic hypotension, which is characterized by a significant drop in systolic blood pressure (>15 mm Hg) and an increase in heart rate (>15%), along with dizziness. These symptoms suggest volume depletion, inadequate vasoconstrictor mechanisms, and autonomic insufficiency. The appropriate nursing intervention in this case is to force fluids and reassess blood pressure to address the underlying issue of volume depletion and improve hemodynamic stability. Choices A, B, and D are incorrect because increasing fluids high in protein, restricting fluids, or limiting fluids to non-caffeine beverages are not appropriate actions for a client experiencing orthostatic hypotension and signs of volume depletion.
A 28-year-old male has been found wandering around in a confusing pattern. The male is sweaty and pale. Which of the following tests is most likely to be performed first?
- A. Blood sugar check
- B. CT scan
- C. Blood cultures
- D. Arterial blood gases
Correct Answer: A
Rationale: In a 28-year-old male presenting with confusion, sweating, and pallor, the most likely cause is hypoglycemia, especially with no mention of trauma or infection. Therefore, the initial test to be performed should be a blood sugar check to rule out low blood sugar levels. Checking blood sugar levels is crucial in such a scenario as hypoglycemia can lead to altered mental status. A CT scan (choice B) is not typically the initial test for altered mental status without any focal neurological signs or head trauma. Blood cultures (choice C) are more relevant in cases suspected of infection, which is not a primary concern in this scenario. Arterial blood gases (choice D) may be considered later if there are concerns about respiratory status or acid-base disturbances, but in this case, checking the blood sugar level is the most immediate and appropriate action.
During shift change, a healthcare professional is reviewing a patient's medication. Which of the following medications would be contraindicated if the patient were pregnant?
- A. Warfarin (Coumadin)
- B. Celecoxib (Celebrex)
- C. Clonidine (Catapres)
- D. Transdermal nicotine (Habitrol)
Correct Answer: A
Rationale: Warfarin (Coumadin) is contraindicated in pregnancy due to its pregnancy category X classification. It is associated with central nervous system defects, spontaneous abortion, stillbirth, prematurity, hemorrhage, and ocular defects when administered at any time during pregnancy. Fetal warfarin syndrome can occur when given during the first trimester. Celecoxib (Celebrex) is a pregnancy category C medication, which means there may be risks but benefits may outweigh them. Clonidine (Catapres) is also a pregnancy category C drug, and while animal studies have shown adverse effects on the fetus, there are limited human studies. Transdermal nicotine (Habitrol) is classified as a pregnancy category D drug, indicating positive evidence of fetal risk, but benefits may still warrant its use in pregnant women with serious conditions.
Mr. B is recovering from a surgical procedure that was performed four days ago. The nurse's assessment finds this client coughing up rust-colored sputum; his respiratory rate is 28/minute with expiratory grunting, and his lung sounds have coarse crackles on auscultation. Which of the following conditions is the most likely cause of these symptoms?
- A. Tuberculosis
- B. Pulmonary edema
- C. Pneumonia
- D. Histoplasmosis
Correct Answer: C
Rationale: In this scenario, the client's presentation of coughing up rust-colored sputum, increased respiratory rate, expiratory grunting, and coarse crackles on lung auscultation suggests the development of pneumonia. Pneumonia is characterized by lung tissue inflammation or infection, often caused by various organisms. Symptoms may include productive cough, dyspnea, and abnormal breath sounds. Tuberculosis (Choice A) typically presents with a chronic cough, weight loss, and night sweats and is less likely in this acute post-operative setting. Pulmonary edema (Choice B) is characterized by pink, frothy sputum, crackles throughout the lungs, and typically occurs in the context of heart failure. Histoplasmosis (Choice D) is a fungal infection that usually presents with flu-like symptoms and is less likely to manifest with the specific respiratory findings described in this case.
A child is admitted to the hospital with a diagnosis of Wilms tumor, stage II. Which of the following statements most accurately describes this stage?
- A. The tumor is less than 3 cm in size and requires no chemotherapy.
- B. The tumor did not extend beyond the kidney and was completely resected.
- C. The tumor extended beyond the kidney but was completely resected.
- D. The tumor has spread into the abdominal cavity and cannot be resected.
Correct Answer: C
Rationale: In Wilms tumor staging, stage II indicates that the tumor extends beyond the kidney but is completely resected. This means that the tumor has spread beyond the kidney but has been successfully removed. Choices A and B are incorrect because a tumor less than 3 cm in size and a tumor that did not extend beyond the kidney do not align with the characteristics of stage II Wilms tumor. Choice D is also incorrect as it describes a more advanced stage where the tumor has spread into the abdominal cavity and cannot be completely resected. Therefore, the correct answer is C, as it accurately reflects the characteristics of a stage II Wilms tumor.