NCLEX-RN
NCLEX RN Practice Questions Free Questions
Extract:
Question 1 of 5
Decreased pulmonary blood flow, right-to-left shunting, and deoxygenated blood reaching the systemic circulation are characteristic of:
Correct Answer: A
Rationale: Tetralogy of Fallot is the most common cyanotic heart defect, which includes a VSD, pulmonary stenosis, an overriding aorta, and ventricular hypertrophy. The blood flow is obstructed because the pulmonary stenosis decreases the pulmonary blood flow and shunts blood through the VSD, creating a right-to-left shunt that allows deoxygenated blood to reach the systemic circulation. A VSD alone creates a left-to-right shunt. The pressure in the left ventricle is greater than that of the right; therefore, the blood will shunt from the left ventricle to the right ventricle, increasing the blood flow to the lungs. No deoxygenated blood will reach the Systemic circulation. In patent ductus arteriosus, the pressure in the aorta is greater than in the pulmonary artery, creating a left-to-right shunt. Oxygenated blood from the aorta flows into the unoxygenated blood of the pulmonary artery. Transposition of the great arteries results in two separate and parallel circulatory systems. The only mixing or shunting of blood is based on the presence of associated lesions.
Question 2 of 5
A 27-year-old healthy primigravida is brought to the labor and birthing room by her husband at 32 weeks' gestation. She experienced a sudden onset of painless vaginal bleeding. Following an ultrasound examination, the diagnosis of bleeding secondary to complete placenta previa is made. Expected assessment findings concerning the abdomen would include:
Correct Answer: C
Rationale: A rigid, boardlike abdomen is an assessment finding indicative of placenta abruptio. A cause of postbirth hemorrhage is uterine atony. With placenta previa, uterine tone is within normal range. The placenta is located directly over the cervical os in complete previa. Blood will escape through the os, resulting in the uterus and abdomen remaining soft and relaxed. In placenta abruptio, hypertonicity of the uterus is caused by the entrapment of blood between the placenta and uterine wall, a retroplacental bleed. This does not exist in placenta previa.
Question 3 of 5
The client is admitted with a diagnosis of gastroenteritis. Which precaution should the nurse implement?
Correct Answer: B
Rationale: Gastroenteritis is often caused by pathogens like norovirus, requiring contact precautions to prevent fecal-oral transmission. Standard precautions are insufficient, and droplet or airborne are not indicated.
Question 4 of 5
After 7 hours in restraints and a total of 30-mg haloperidol in divided doses, a client complains of stiffness in his neck and his tongue 'pulling to one side.' These extrapyramidal symptoms (EPS) will most likely be relieved by the administration of:
Correct Answer: B
Rationale: Benztropine acts to reduce EPS by blocking excess CNS cholinergic activity associated with dopamine deficiency in the basal ganglia by displacing acetylcholine at the receptor site.
Question 5 of 5
A group of nursing students at a local preschool day care center are going to screen each child's fine and gross motor, language, and social skills. The students will use which one of the most widely used screening tests?
Correct Answer: C
Rationale: The Revised Prescreening Developmental Questionnaire is more age appropriate and offers simplified parent scoring and easier comparison. It is used by parents instead of professionals. The Goodenough Draw-a-Person test is used to assess intellectual development. The Denver Developmental Screening Test is one of the most widely used screening tests. It offers a concise, easy-to-administer, systematic approach to assessing the preschool child. It is widely used because of its reliability and validity. The Caldwell Home Inventory is used to assess the home environment in areas of social, emotional, and cognitive supports.