Dr Ranj and Jobi discover the wonder of x-rays, while Nurse Morag leads the Healthy Helpers in a bony quiz.
Dr Ranj wants Petal to drink through a swirly straw to help her recover from a tummy bug, and Nurse Morag shows the Healthy Helpers how to wash their hands to keep those nasty bugs away.
Riz sees only blurry shapes when Dr Ranj tests his eyes, while Nurse Morag and the Healthy Helpers play with magnifying glasses and a telescope to explore how lenses change what people see.
Kiwa is surprised when Dr Ranj tells her how snot can be helpful, then Nurse Morag and the Healthy Helpers play a game of snotty football.
Dr Ranj warns Deep that scratching ringworm can spread the germs to other children, and Nurse Morag plays pat-a-cake with the Healthy Helpers to show them how this can happen.
Nurse Morag has the Healthy Helpers running around a paddling pool with green feet.
Nurse Morag shows the Healthy Helpers how scabs are truly amazing.
Dr Ranj tells Deep his own body will fight off spots and blisters.
Kiwa says she's been zapped by aliens but Dr Ranj tells her it is actually sunburn.
Dr Ranj unwinds the longest bandage ever when Jobi comes in with a bump on his head.
Nurse Morag and the Healthy Helpers brush and clean a giant set of teeth.
Nurse Morag shows the Healthy Helpers why everyone needs a good night's sleep.
The Healthy Helpers tell Nurse Morag why lice like to live on people's heads.
Poor Jobi's voice sounds different and Dr Ranj explains why.
Dr Ranj helps Deep when he feels blown up like a balloon.
Deep has an echocardiogram, which lets Dr Ranj check that his heart is working properly.
Kiwa has a naso-gastric tube fitted by Dr Ranj so she can get the medicine she needs.
Jobi has a CT scan so Dr Ranj can make sure everything is okay with his brain.
Petal needs the cast on her arm changing because it has got dirty and is crumbling.
Dr Ranj and Nurse Morag look on as Riz has a chest x-ray to make sure his lungs are working, and Dr Ranj explains how X-rays pass through the body to take special photos.
Jobi visits Dr Ranj with a cut on his head. He thinks he will need stitches but Dr Ranj explains that he can use a special kind of glue instead to mend his cut.
Dr Ranj needs to give Petal medicine in a different way. He is going to put a tiny tube called a cannula in the back of her hand so he can give her medicine through a tube.
Deep has some mysterious itchy red bumps all over his body. Dr Ranj thinks he might have an allergy. The decide to investigate the cause of it.
Kiwa is embarrassed to visit Dr Ranj because it hurts when she wees. Dr Ranj explains that it is nothing to be embarrassed about, but it might hurt because she has an infection. He does an ultrasound scan to check her bladder and kidneys.
Riz has come to see Dr Ranj wearing his cycle helmet because he is worried about falling down. Dr Ranj discovers that Riz has fallen down before. Dr Ranj tells Riz he's going to do a test called an electroencephalogram, or EEG for short. It will test whether the electricity in Riz's brain is working properly.
Jobi is pretending to be a superspy but is having problems hearing things and thinks he might need a new ear. Dr Ranj reassures him by doing a simple hearing test.
Petal has come to see Dr Ranj because her feet hurt, particularly when she dances. Dr Ranj tells her that she has flat feet, but by putting special insoles in her shoes they should stop hurting and she can enjoy dancing again.
Deep comes to see Dr Ranj because he has funny feelings inside his chest and can hear a boom, boom. Dr Ranj does an ECG test - an electrocardiogram - to check how his heart is working.
Dr Ranj arrives on the ward to see Kiwa, who is worried about her operation to remove a skin flap. Dr Ranj reassures her and she ends up enjoying being wheeled along on her bed to the operating theatre.
Riz is in the outpatients department, where he has come to have five tests: height, weight, heart rate, breathing rate and blood pressure. He enjoys ticking them off on a list as he goes.
Dr Ranj explains the coronavirus to Jobi. They sing a song about washing your hands.
