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Bone morphogenetic protein (BMP)

What is the single most likely correct order of electrical conduction in the heart?

A 60 year old cardiac patient has irregular heartbeats.

AV node → SA node → Bundle branches → Purkinje fibers

AV node → Bundle branches → Purkinje fibers

SA node → AV node → Purkinje fibers → Bundle of His

SA node → AV node → Bundle of His → Purkinje fibers

AV node → SA node → Purkinje fibers → Bundle branches

Which lobe of the lung is most likely inflamed ?

A 28-year-old woman, presents to the emergency department with a productive cough, fever, and dyspnea. Upon examination, her doctor suspects she may have pneumonia, her chest X-ray reveals an area of consolidation located below the horizontal fissure.

Inferior lobe of left lung

Superior lobe of right lung

Middle lobe of right lung

Superior lobe of left lung

Inferior lobe of right lung

Which specific artery is most likely occluded?

A 58-year-old smoker man presents with acute chest pain, radiating to the left shoulder. He is diagnosed with myocardial infarction affecting the diaphragmatic surface of both right and left ventricles.

Right conus artery

circumflex artery

Left marginal artery

Anterior interventricular artery

Posterior interventricular artery

A 54 year old man has tachycardia and dyspnea, the cardiologist examines his heart.

Where is the single best spot on this man’s chest to auscultate the mitral valve of the heart ?

5th left intercostal space, at midclavicular line.

5th left intercostal space, parasternal.

5th right intercostal space, at midclavicular line.

5th right intercostal space, at midaxillary line.

5th left intercostal space, at midaxillary line.

What is the single most likely value of his expiratory reserve volume?

A 50 year old asthmatic, man is referred to the pulmonologist for assessment of his lung volumes and capacity. His VC = 4200 ml, tidal volume 450 ml and inspiratory capacity is 2950 ml.

320

800

1250

2350

3750

Oxygen hemoglobin dissociation curve is an important tool to assess the affinity of hemoglobin to oxygen.

In which particular setting does normal adult hemoglobin HbA have a decreased affinity for oxygen?

methemoglobinemia

exposure to sulfa drugs

carbon monoxide intoxication

alkalosis

increased 2,3 DPG

A 35 years old women having fever,chest pain and rapid breathing. The physician demised breathing sound on auscultation of the right infraclavicular region and ask for X-ray of the chest. From the given chest X-ray which of the following is the most likely diagnosis?

Right upper lobar carcinoma

Right upper lobar consolidation

Right sided idiopathic pulmonary fibrosis

Right upper lobar collapse

Right sided effusion

A 12 year old boy is brought to the emergency department with severe difficulty in breathing after accidental inhalation of a piece of meat.

Which is the most likely expected ventilation perfusion ratio of the affected lung area?

0.8

zero

three

infinity

0.6

A six-week-old male baby is referred to pediatrician for evaluation of an abnormal “HbF only” result on newborn hemoglobinopathy screening. The infant appears healthy, but repeat hemoglobin electrophoresis confirms HbF only. What is the most likely diagnosis of this baby’s condition?

β-thalassemia minor

three gene deletion α-thalassemia

four gene deletion α-thalassemia

two gene deletion α-thalassemia

β-thalassemia major

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