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HESI Pathophysiology (Patho & Pharm) EVOLVE Questions Study Guide: Comprehensive Review of Pathophysiology and Pharmacology Concepts with Detailed Answer Rationales for Nursing Exam Preparation

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Description This comprehensive HESI Pathophysiology (Patho & Pharm) EVOLVE Questions study guide provides an extensive collection of high-yield practice questions with detailed answer rationales covering both pathophysiological concepts and pharmacological principles essential for nursing exam success. The document is meticulously structured to facilitate active learning and critical thinking development for nursing students preparing for the HESI exit exam, NCLEX, and other comprehensive nursing assessments. Key Content Areas Covered: 1. Respiratory System Pathophysiology and Pharmacology Auscultation findings including fine crackles (short, high-pitched sounds heard just before end of inspiration resulting from collapsed alveoli or terminal bronchioles snapping open) Tension pneumothorax assessment including tracheal deviation toward the unaffected side, absence of lung sounds on the affected side, and mediastinal shift Acute bronchitis pathophysiology, clinical features, and management Status asthmaticus medication administration sequence: albuterol (short-acting beta-2 agonist) first, salmeterol (long-acting bronchodilator) second, prednisone (corticosteroid) third, and gentamicin (antibiotic) last Lung cancer types including adenocarcinoma (not related to smoking, associated with pulmonary scarring/fibrosis from COPD or TB) versus oat cell carcinoma (smoking-related) COPD and respiratory assessment findings 2. Neurological System Pathophysiology Right hemispheric stroke manifestations including denial of deficits, impulsiveness, and risk for injury due to impaired judgment and spatial perception Decorticate posturing (upper-extremity adduction and flexion with lower-extremity extension) indicating severe dysfunction of the cerebral cortex Decerebrate posturing and prognostic implications Huntington's disease (autosomal dominant disorder) and genetic counseling considerations Parkinson's disease and carbidopa-levodopa (Sinemet) therapeutic response including lessening of tremors Myasthenia gravis diagnosis with edrophonium chloride (Tensilon) causing temporary decrease in muscle weakness Muscular dystrophy characterized by skeletal muscle degeneration Tetanus management including minimizing environmental stimulation and diazepam administration 3. Cardiovascular System Pathophysiology and Pharmacology Coronary artery disease risk factors and pathophysiology Heart failure exacerbation causes including acute coronary syndrome, myocarditis, valve syndromes, cardiomyopathic states, and poorly controlled hypertension Coarctation of the aorta with blood pressure higher in arms than legs Abdominal aortic aneurysm repair complications including renal artery embolization manifested by flank pain and decreased urinary output Pulmonary artery catheter use for measuring central pressures and monitoring fluid replacement Dysrhythmia management including adenosine (Adenocard) with continuous cardiac monitoring Digoxin (Lanoxin) therapy including assessment of serum potassium levels (hypokalemia precipitates toxicity) Spironolactone (Aldactone) potassium-sparing diuretic effects and dietary potassium restrictions Angiotensin-converting enzyme (ACE) inhibitors including captopril (Capoten) and dizziness as adverse effect Angiotensin II receptor blockers (ARBs) including losartan (Cozaar) and valsartan (Diovan) with hyperkalemia monitoring Beta-adrenergic blockers including metoprolol (Lopressor) and propranolol (Inderal) with blood pressure monitoring and adverse effects (wheezing, hypotension, AV block) Nitroglycerin and isosorbide dinitrate (Imdur/Isordil) for angina including orthostatic hypotension precautions and headache management Dobutamine (Dobutrex) for heart failure Dopamine (Intropin) and urinary output monitoring 4. Renal and Genitourinary System Pathophysiology Chronic kidney disease (CKD) classification and GFR staging (G1–G5) Glomerulonephritis mechanisms and clinical presentations Renin overserection and hypertension pathophysiology Cystocele in postmenopausal women manifested by urinary urgency, frequency, stress incontinence, and difficulty emptying bladder Prostate-specific antigen (PSA) elevations related to gland volume, benign prostatic hypertrophy, prostatitis, and prostate cancer Digital rectal examination (DRE) findings including stony, irregular nodules suggesting prostate cancer 5. Gastrointestinal System Pathophysiology and Pharmacology Large bowel obstruction manifested by lower abdominal distention Small bowel obstruction with nausea, profuse vomiting, and upper abdominal discomfort Esophageal varices in cirrhosis with hematemesis, melena, and treatment with beta-blockers, PPIs, and variceal band ligation Peptic ulcer disease and antacid (Maalox) therapy to maintain gastric pH of 3.5 or above Vomiting pathophysiology involving chemoreceptor trigger zone stimulation Lactulose (Cephulac) for constipation and portal-systemic encephalopathy with two to three soft stools per day as therapeutic outcome Antidiarrheal agents including loperamide (Imodium) and bismuth subsalicylate (Pepto Bismol) with salicylate toxicity caution Metronidazole (Flagyl) for giardiasis and trichomonas vaginalis including alcohol avoidance and partner treatment 6. Endocrine System Pathophysiology and Pharmacology Diabetes mellitus complications including diabetic retinopathy severity related to poor blood glucose control Glipizide (Glucotrol) as oral hypoglycemic agent enhancing pancreatic insulin production (not oral insulin) Thyroid disorders including Hashimoto's thyroiditis (most common cause of hypothyroidism), myxedema, and hyperthyroidism Propylthiouracil (PTU) inhibiting thyroid hormone synthesis Thyroid replacement hormone therapy adverse effects including tachycardia and chest pain Syndrome of inappropriate antidiuretic hormone (SIADH) most commonly caused by small cell lung cancer, manifested by weight gain and low serum sodium Diabetes insipidus pathophysiology 7. Hematologic System Pathophysiology Anemia definition and diagnostic thresholds (hemoglobin 13.5 g/dL or HCT 41.0% for men; 12.0 g/dL or 36.0% for women) Sickle cell disease pathophysiology including hemoglobin S homozygosity, red blood cell destruction, and vaso-occlusive crises Acute myelogenous leukemia (AML) with thrombocytopenia increasing risk for injury/bleeding Pernicious anemia due to intrinsic factor deficiency and cobalamin (Vitamin B12) malabsorption Hemophilia A (X-linked recessive disorder) with 50% chance of male offspring inheriting the defective gene from carrier mothers Febrile transfusion reaction manifested by chills, fever, headache, flushing, and muscle pain 8. Immune System and Infectious Disease Pathophysiology Human immunodeficiency virus (HIV) seroconversion timeline (6 to 12 weeks after exposure) Sepsis and septic shock with hyperpnea as early manifestation Anaphylaxis management with epinephrine Recurrent infections in adults including anatomic lesions, functional disorders, and secondary immunosuppression Primary immunodeficiency disorders including DiGeorge syndrome Maple syrup urine disease (MSUD) autosomal recessive inheritance requiring both genes of a pair to be abnormal 9. Musculoskeletal System Pathophysiology and Pharmacology Gout pathophysiology including hyperuricemia, monosodium urate crystal formation, and tophi development Osteoporosis management with alendronate (Fosamax) requiring upright position for 30 minutes after administration Osteoarthritis management with celecoxib (Celebrex) and sulfa allergy cross-sensitivity Rheumatoid arthritis management with ibuprofen and misoprostol (Cytotec) for gastrointestinal protection Acute compartment syndrome manifested by severe diffuse pain unresponsive to analgesics, greater with passive movement than active movement Muscular dystrophy with skeletal muscle degeneration 10. Oncologic Pathophysiology and Pharmacology Colon cancer signs and symptoms including hematochezia, melena, abdominal pain, iron deficiency anemia, and change in bowel habit Hodgkin's disease radiation therapy causing permanent sterility in males Doxorubicin (Adriamycin) extravasation management including discontinuation of IV fluids Cytosine arabinoside (Arc-C) antimetabolite chemotherapy with stomatitis and oral mucosal ulceration monitoring Cyclosporine (Sandimmune) adverse effects including hand tremors requiring healthcare provider notification Dexamethasone (Decadron) for tumor-induced spinal cord compression Malignant pituitary tumor excision and SIADH development 11. Pharmacological Principles and Medication Safety First-pass effect with oral medications undergoing hepatic metabolism Pharmacokinetic changes in older adults including decreased lean body mass affecting drug distribution Patient-controlled analgesia (PCA) pump with morphine including respiratory rate assessment before initiation Opioid analgesic tolerance and persistent side effects (constipation) Opioid agonist-antagonist interactions (butorphanol/Stadol with hydromorphone/Dilaudid) causing withdrawal Naloxone (Narcan) for opioid overdose reversal with respiratory rate assessment as effectiveness indicator Meperidine (Demerol) toxicity manifested by restlessness, irritability, confusion, and hallucinations Acetaminophen (Tylenol) overdose and liver damage assessment (right upper quadrant abdominal pain) Heparin and warfarin (Coumadin) therapy with prothrombin time (PT/INR) monitoring Low molecular weight heparin (LMWH) for postoperative venous thromboembolism prophylaxis Methylprednisolone (Solu-Medrol) causing hyperglycemia (increased serum glucose) Niacin (Niaspan) expected flushing duration teaching Atorvastatin (Lipitor) myopathy manifested by muscle pain and weakness Scopolamine patch (Transderm Scop) for motion sickness with application 4 hours before departure and behind the ear Beta-1 agonist indications (heart failure) versus beta-2 agonist indications (asthma) Cephalosporin cross-sensitivity with penicillin allergy Category X drugs requiring reliable contraception 12. Fluid, Electrolyte, and Acid-Base Balance Acid-base values including pH (7.35–7.45), PaCO₂ (35–45 mmHg), and HCO₃ (21–27 mEq/L) Respiratory acidosis, respiratory alkalosis, metabolic acidosis, and metabolic alkalosis with clinical manifestations Hyperkalemia and hypokalemia effects on cardiac function and medication safety Syndrome of inappropriate antidiuretic hormone (SIADH) with hyponatremia and fluid retention 13. Genetic and Inherited Disorders Autosomal recessive inheritance (Maple syrup urine disease) requiring both genes of a pair to be abnormal Autosomal dominant inheritance (Huntington's disease) and genetic counseling before testing X-linked recessive inheritance (Hemophilia A) with carrier mothers and 50% risk in male offspring Genetic testing considerations including insurance discrimination and informed consent 14. Emergency and Critical Care Pathophysiology Tension pneumothorax with tracheal deviation and absent lung sounds Anaphylaxis management with epinephrine Septic shock with hyperpnea as early manifestation Acute compartment syndrome requiring emergency treatment Hypothermia with increased risk for dysrhythmias requiring continuous cardiac monitoring Status asthmaticus with stepwise medication administration

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HESI Pathophysiology (Patho & pharm EVOLVE q's)
Study online at https://quizlet.com/_fe94lr

1. The nurse hears short, Crackles in the right and left lower lobes.
high-pitched sounds just be-
fore the end of inspiration in Rationale: Fine crackles are short, high-pitched sounds heard
the right and left lower lobes just before the end of inspiration that are the result of rapid
when auscultating a client's equalization of pressure when collapsed alveoli or terminal
lungs. How should this finding bronchioles suddenly snap open.
be recorded?

-Inspiratory wheezes in both
lungs.
-Crackles in the right and left
lower lobes.
-Abnormal lung sounds in the
bases of both lungs.
-Pleural friction rub in the right
and left lower lobes.

2. The nurse is planning care for Risk for injury related to denial of deficits and impulsiveness.
a client who has a right hemi-
spheric stroke. Which nursing Rationale: With right-brain damage, a client experience diffi-
diagnosis should the nurse in- culty in judgment and spatial perception and is more likely to
clude in the plan of care? be impulsive and move quickly, which places the client at risk
for falls.
-Impaired physical mobility re-
lated to right-sided hemiple-
gia.
-Risk for injury related to de-
nial of deficits and impulsive-
ness.
-Impaired verbal communica-
tion related to speech-lan-
guage deficits.


, HESI Pathophysiology (Patho & pharm EVOLVE q's)
Study online at https://quizlet.com/_fe94lr

-Ineffective coping related to
depression and distress about
disability.

3. The nurse is assessing a post- Cystocele
menopausal woman who is
complaining of urinary ur- Rationale: This constellation of signs in a postmenopausal
gency and frequency and woman are characteristic of a cystocele. These symptoms are
stress incontinence. She also not characteristic of the other options.
reports difficulty in emptying
her bladder. These complaints
are most likely due to which
condition?

-Cystocele.
-Bladder infection.
-Pyelonephritis.
-Irritable bladder.

4. The nurse is caring for a Loss of thirst, weight gain
client with syndrome of in-
appropriate antidiuretic hor- Rationale: SIADH occurs when the posterior pituitary gland re-
mone (SIADH), which is mani- leases too much ADH, causing water retention, a urine output
fested by which symptoms? of less than 20 ml/hour, and dilutional hyponatremia. Other
indications of SIADH are loss of thirst, weight gain, irritability,
-Loss of thirst, weight gain. muscle weakness, and decreased level of consciousness.
-Dependent edema, fever.
-Polydipsia, polyuria.
-Hypernatremia, tachypnea.

5. The nurse is teaching a client Both genes of a pair must be abnormal for the disorder to
with maple syrup urine dis- occur
ease (MSUD), an autosomal re-


, HESI Pathophysiology (Patho & pharm EVOLVE q's)
Study online at https://quizlet.com/_fe94lr

cessive disorder, about the in- Rationale: Maple syrup urine disease (MSUD) is a type of
heritance pattern. Which in- autosomal recessive inheritance disorder in which both genes
formation should the nurse of a pair must be abnormal for the disorder to be expressed.
provide?

-This recessive disorder is car-
ried only on the X chromo-
some.
-Occurrences mainly affect
males and heterozygous fe-
males.
-Both genes of a pair must be
abnormal for the disorder to
occur.
-One copy of the abnormal
gene is required for this disor-
der.

6. What information should the -Smoking
nurse include in a teach- -early menarche
ing plan about the onset of -genetic influence
menopause? (Select all that -chemotherapy exposure
apply).
Rationale: Menopausal symptoms are related to the ces-
-Smoking. sation of ovarian function. Factors influencing the onset of
-Oophorectomy with hysterec- menopause include smoking, genetic influences, early men
tomy.
-Early menarche.
-Cardiac disease.
-Genetic influence.
-Chemotherapy exposure.




, HESI Pathophysiology (Patho & pharm EVOLVE q's)
Study online at https://quizlet.com/_fe94lr

7. The nurse reviews the com- risk for injury
plete blood count (CBC) find-
ings of an adolescent with Rationale: A client with AML is at risk for anemia, neutrope-
acute myelogenous leukemia nia, and thrombocytopenia. These CBC findings indicate that
(AML). The hemoglobin is the platelet count is low (normal 250,000 to 400,000 mm3),
13.8 g/dl, hematocrit is 36.7%, which places this client at an increased risk for injury, usually
white blood cell count is 8,200 manifested as bruising or bleeding.
mm3, and platelet count is
115,000 mm3. Based on these
findings, what is the priori-
ty nursing diagnosis for this
client's plan of care?

-Impaired gas exchange.
-Risk for infection.
-Risk for injury.
-Risk for activity intolerance.

8. A mother is crying as she lay the child down and ask the mother to stay near the child
holds and rocks her child with in the crib
tetanus who is having muscu-
lar spasms and crying. After Rationale: Controlling environmental stimulation such as
administering diazepam (Vali- noise, light, or tactile stimuli helps reduce CNS irritability
um) to the child, what action related to acute tetanus. The mother should be instructed to
should the nurse implement? minimize handling of the child during episodes of muscle
spasticity and to stay calmly near the child. The mother's
-Lay the child down and ask presence with the child provides security and support to the
the mother to stay near the child.
child in the crib.
-Encourage the mother to take
a break and leave the room to
stop crying.

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