What is responsible for the inspiratory splitting of S ?

Questions 27

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Physical Examination and Health Assessment 9th Edition Test Bank Questions

Question 1 of 9

What is responsible for the inspiratory splitting of S ?

Correct Answer: A

Rationale: Inspiratory splitting of S occurs due to the normal physiological delay in the closure of the aortic and pulmonic valves during inspiration. During inspiration, the negative intrathoracic pressure leads to increased venous return to the right side of the heart, causing a slight delay in the closure of the pulmonic valve. This results in the aortic valve closing first, followed by the closure of the pulmonic valve, leading to the splitting of S during inspiration.

Question 2 of 9

Mrs. Lenzo weighs herself every day with a very accurate balance-type scale. She has noticed that over the past 2 days she has gained 4 pounds. How would you best explain this?

Correct Answer: C

Rationale: The most likely explanation for Mrs. Lenzo noticing a 4-pound weight gain over just 2 days is fluctuations in body fluid. Our body weight can fluctuate throughout the day due to factors such as hydration levels, sodium intake, and hormonal changes. It is not physically possible to gain 4 pounds of actual body mass (e.g., fat or muscle) in such a short period of time by overeating or wearing different clothing. Additionally, if Mrs. Lenzo's scale is very accurate as mentioned, it is less likely that the weight gain is due to instrument inaccuracy. Therefore, the most plausible reason for the sudden weight gain is fluctuations in body fluid retention.

Question 3 of 9

The following information is best placed in which category? "The patient had a stent placed in the left anterior descending artery (LAD) in "

Correct Answer: B

Rationale: The information provided - "The patient had a stent placed in the left anterior descending artery (LAD)" - is related to a medical procedure, specifically a surgical intervention involving the placement of a stent in a coronary artery. This information falls under the category of surgeries because it describes a surgical treatment to address a cardiovascular issue. It does not pertain to adult illnesses, obstetrics/gynecology, or psychiatric conditions, making option B the most appropriate category for this information.

Question 4 of 9

A 28-year-old musician comes to your clinic, complaining of a "spot" on his penis. He states his partner noticed it 2 days ago and it hasn't gone away. He says it doesn't hurt. He has had no burning with urination and no pain during intercourse. He has had several partners in the last year and uses condoms occasionally. His past medical history consists of nongonococcal urethritis from Chlamydia and prostatitis. He denies any surgeries. He smokes two packs of cigarettes a day, drinks a case of beer a week, and smokes marijuana and occasionally crack. He has injected IV drugs before but not in the last few years. He is single and currently unemployed. His mother has rheumatoid arthritis and he doesn't know anything about his father. On examination you see a young man appearing deconditioned but pleasant. His vital signs are unremarkable. On visualization of his penis there is a 6-mm red, oval ulcer with an indurated base just proximal to the corona. There is no prepuce because of neonatal circumcision. On palpation the ulcer is nontender. In the inguinal region there is nontender lymphadenopathy. What disorder of the penis is most likely the diagnosis?

Correct Answer: C

Rationale: The presentation described in the scenario is consistent with a syphilitic chancre, which is the primary lesion of syphilis. Syphilitic chancres are painless, indurated ulcers that occur at the site of initial infection with Treponema pallidum. These chancres are typically 0.5-2 cm in size, have a clean base, and are often accompanied by regional lymphadenopathy. The red oval ulcer with an indurated base in this patient, along with the absence of pain and presence of lymphadenopathy, is consistent with a syphilitic chancre.

Question 5 of 9

A daycare worker presents to your office with jaundice. She denies IV drug use, blood transfusion, and travel and has not been sexually active for the past 10 months. Which type of hepatitis is most likely?

Correct Answer: B

Rationale: Among the options presented, Hepatitis B (HBV) is most likely in this scenario. HBV can be transmitted through mucous membrane exposure to infectious blood or body fluids, including sexual contact. The daycare worker's history of not being sexually active for the past 10 months would not completely rule out the possibility of acquiring HBV through a past sexual encounter. Also, HBV can persist in the blood for prolonged periods, making it a likely cause of jaundice in this case. The other types of hepatitis (A, C, D) are less likely based on the information provided concerning the daycare worker's history and risk factors.

Question 6 of 9

Which of the following conditions involves a tight prepuce which, once retracted, cannot be returned?

Correct Answer: B

Rationale: Paraphimosis is a condition where the foreskin is retracted behind the glans penis and cannot be returned to its original position. This can lead to swelling and constriction of the penis, causing pain and potential damage to the tissue due to decreased blood flow. Phimosis (Choice A) refers to a tight prepuce that cannot be retracted over the glans penis. Balanitis (Choice C) is inflammation of the glans penis, often associated with poor hygiene or infections. Balanoposthitis (Choice D) refers to inflammation of both the glans penis and the foreskin.

Question 7 of 9

Mr. Maxwell has noticed that he is gaining weight and has increasing girth. Which of the following would argue for the presence of ascites?

Correct Answer: B

Rationale: Ascites is the abnormal accumulation of fluid in the abdominal cavity. When ascites is present, dullness is typically heard on percussion due to the fluid in the abdomen. This dullness does not shift with changes in the patient's position. Therefore, the finding of dullness which remains despite a change in position would argue for the presence of ascites. The other choices (A, C, D) describe findings that are more consistent with gaseous distention rather than ascites.

Question 8 of 9

He is afebrile. His cardiac, lung, and abdominal examinations are normal. Visualization of the anus shows no erythema, masses, or inflammation. Digital rectal examination elicits an irregular, firm mass on the posterior side of the rectum. After you remove your finger you notice frank blood on your glove. What anal or rectal disorder is this patient most likely to have?

Correct Answer: D

Rationale: The patient in this scenario presents with symptoms suggestive of an anorectal disorder. The presence of an irregular, firm mass on the posterior side of the rectum, along with frank blood seen on the glove after a digital rectal examination, raises suspicion for an underlying anorectal cancer. Anorectal cancer can present with symptoms such as rectal bleeding, changes in bowel habits, palpable masses, and weight loss. In this case, the findings of an irregular mass and rectal bleeding are concerning for a malignant process such as anorectal cancer. Further evaluation with imaging studies and biopsy would be warranted for confirmation and to guide appropriate management.

Question 9 of 9

Her blood pressure and pulse are unremarkable. Her head, eyes, ears, nose, and throat examinations are unremarkable except for edema of the nasal turbinates. On auscultation she has decreased air movement, and coarse crackles are heard over the left lower lobe. There is dullness on percussion, increased fremitus during palpation, and egophony and whispered pectoriloquy on auscultation. What disorder of the thorax or lung best describes her symptoms?

Correct Answer: D

Rationale: The patient's symptoms point towards pneumonia. Pneumonia is characterized by infection and inflammation in the lung tissue, leading to symptoms such as decreased air movement, crackles on auscultation, dullness on percussion, increased fremitus on palpation, and abnormal breath sounds like egophony and whispered pectoriloquy. These findings are consistent with consolidation of the lung, which occurs in pneumonia as a result of fluid, inflammatory cells, and tissue debris filling the alveoli. The presence of nasal turbinates edema indicates a possible upper respiratory tract infection that may have preceded the development of pneumonia. Spontaneous pneumothorax would typically present with sudden-onset chest pain and dyspnea but would not typically cause findings of lung consolidation. Chronic obstructive pulmonary disease (COPD) and asthma are characterized by different patterns of lung damage and symptoms, such as chronic inflammation, airflow obstruction, and hyper

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